Crikey OP Panicking and spiralling? Take a step back to be proud of your daughter and her achievements and trust in her ability to find her own path as she sounds more than capable.
I'll tell you about my DD, also a hard worker/high achiever. The only help she had from me was getting her first pub job age 16 when she was on study leave for her AS levels. I noticed the pub up the road from her school was having a recruitment morning and suggested she go. She had a fit, study blah blah, no cv etc. I did her CV that night and dropped her off at 8am, they offered a trial shift and she was in, never looked back. It was a great first job, local gastro pub group, doing really well back then. I let her take an afternoon off school Drs appointment for a wine training afternoon. I think they had forgotten she was only 16. They learnt about the wines they sell, how to present them and up sell, how to cork them and might have done a bit of tasting too. She won employee of the month several times, gifting us a free meal at the fine dining pub in the group among other prizes. The best thing was when it was time to leave to move on to Uni she was able to pass on her job to DD2, a shy and diffident girl who would never have survived an interview and trial shift but trained up by her sister got stuck in and also benefited hugely from working for the group. Also whenever she was home in the holidays there was always work available for DD. She's been great about working, earning money and paying her way.
Onto uni and a 1st from RG uni in international relations with quantitative methods. She graduated in 2020 and graduate job plans evaporated with covid. So she, her boyfriend and a few others headed to Spain with some company (can't remember who) that organised teaching assistant jobs for them. She spent two years there, very low pay but had a great time overall, learnt another language (fluent) and picked up a TEFL qualification along the way. Although some aspects of lockdown were very strict in Spain overall they had a better time there than here, her school was near a beach and she could swim all year round, keen climbers they were able to get out of the cities for long hikes and climbing and still managed to see lots of art galleries and other sights.
At the end they went to Italy and worked in a summer camp in the mountains, lots of taking children hiking, mountain biking, climbing and other sports. The best thing was they went there as vegans, but all food and accommodation was part of the deal and with no opportunity to self cater they shut up and put up and discovered / rediscovered the joys of cheesy pizza, bolognese and tiramisu. Made my life so much easier for cooking when she came home!
Back home she slotted back in with the pub group managing one of the pubs whilst putting in job applications.
She didn't pursue one of the big banks after being interviewed online by some scruffily dressed chap working from his bedroom with a rumpled bed in the background.
She got a 2 1/2 year training contract with a data management company, a few months intense training at the main office followed by industry secondments. She currently earns what OP might think low compared to banking and law, but it's more than junior doctors get as they head out to the wards. Every secondment she's been on they have tried to poach her and offered jobs at double her current salary, so heading towards OPs expectations but she obviously wants to complete the training contract and also would have to repay a significant sum of money if she left before the end.
So apart from booting her into the pub that morning she's done it all herself and is doing well.
Of her friends from uni who graduated same time as her several were poleaxed by lockdown etc and accepted low level jobs in things like local housing Dept and stuck together where they were. I worried for them that they would find themselves in a rut working well below their abilities. But they are all doing well, her close group have all ended up in London so they are all together again, one has joined DD's company on same training scheme, the one who was in housing is now in civil service policy development doing work around domestic violence and climbing the ladder.
As for banking. The son of some wealthy distant relatives through marriage went to the same uni as DD at the same time. She said he was always drunk or high on drugs whenever she happened to see him at student events. He never did a single days work/internship unless you count desultory hitting tennis balls with children at the village summer tennis camp. Probably bigged that up on his cv. 🙄After extended holiday at home following graduation somehow a job appeared in the city thanks to Dad's contacts so off he went to become a banker. 🤷♀️
Anyway whatever they earn labour are going to tax us all to the hilt and I've no idea why OP thinks ending up in London is a life goal.
None of DDs group plan to stay there. Knife crime is a constant worry. One of DD's colleagues was walking back to his flat one night, in a group of five when they were approached by a man and a woman. Wrongly thought 5:2 wins. The man punched them to the ground while the woman transformed into a stabbing ninja. It's a miracle none of them died. One chap was stabbed several times. Her friend blocked a stab to the face/eye with his hand and severed tendons affecting his ability to type with that hand. He supposedly lived in a decent area but there was another killing on the street so he's moved somewhere hopefully safer.
To PP who said work romance doesn't happen, it's happened to DD, lovely chap on the same scheme as her.
Relax OP. Encourage your daughter to travel if she never had a gap year or even if she did. Take time. Do fun stuff. Enjoy life while she's young free and healthy. She'll be fine.