Hi OP
I did history degree and work in marketing in London. If it's helpful I can tell you how I got into the job?
I was really really poor after my masters degree so I just took any role I could in an office it happened to be a sales role in a tech company I did sales for one year then realised my strengths lay in writing prospect emails, running events and social media and I was lucky that my company made a marketing role for me.
That was eight years ago now, I worked my way up to head of marketing and then I decided to go freelance and I'm now a consultant which means I can charge a massive day rate and I've got flexibility since I've had a baby.
I have friends who work in fashion and film PR it's very difficult to get into because it is so so competitive and this means that they can get away with offering a really low salary. I work in the B2B tech space, I work with online retailers. I find the sector really interesting there is lots of innovation and lots of growth plus it's really high salaries so if your daughter is motivated by money it's a good one.
In my sector what is important for marketers is being a good writer, Be able to pick up new technologies really quickly this isn't because I work in the tech sector it's just that marketing these days is increasingly digital focused and you need to be savvy when it comes to technology, You need to be really organised and on the ball.
If I was interviewing for a junior entry role I would expect that they understand about social media have basic knowledge of how to run sponsored posts. I would expect there to be some evidence of writing that they had done on the side of their degree whether this is a blog or contributed articles to a newspaper for the uni or something. And I would expect them to understand Google analytics basics from home study.
It's great that you're such a supportive mum, but my advice would be please let your daughter set up a LinkedIn and do her CV herself it's really really important that she learns to self start and how to do these things. By all means do a proof for each we all need our work proof read.
If she wants any more advice feel free to @ me and I'll give you my email or LinkedIn profile