Going through the Central London prep school system during a financial crisis has given me a different take. We work in the public sector and paying fees meant a lot of prioritising. No cleaner, no exotic holidays, family hand-me-down cars, stick with a 3 bed house, au pair rather than nanny, no money spent on home decoration for two decades, and kids bundled off to grandparents or holiday schemes.
All felt a bit less bleak when other, more affluent parents in their 40s started sidling up to us asking about public sector career opportunities. If they lost their jobs in the shake out there was no guarantee they would find another. It is very likely within our DCs lifetime that shakeouts within the London financial sector will become more severe. There is currently huge restructuring going on within data/tech with firms like Facebook, Uber, Twitter and Google downsizing, and no similar jobs to apply for.
DD tells me that there is a lot of up or out, so friends who were happily boasting about how much they earned, are now back on the job market. IBs like Goldman Sachs will pay huge starting salaries but cull after a couple of years. Top law and accountancy firms also make it quite clear who they want to stay on after qualification, and those selected work very long hours.
In contrast doctors I know have had career variety and longevity. Work part time as a GP in a lovely, or cheaper part of the country, stick in a London teaching hospital and be at the top of your profession, invited to conferences all over the place, get to 60 and take advantage of "retire and return" to dial down on working hours. Plus those who really wanted to be doctors have job satisfaction as a bonus.
Money isn't everything, You can have as much fun on a well chosen cheap holiday as an expensive long haul trip etc. Doctors have the real advantage of being able to find jobs in any part of the country, and indeed overseas, so can set their priorities. Housing where DD has chosen to take her F1, is so cheap that she and her friend are thinking of renting a three bedroom house so friends can visit. It helps to see the benefits. My mother was a teacher, and moaned through the whole of my childhood. When she retired she really missed teaching (especially the bottom set kids who needed support and guidance) and discovered that she had actually loved it all along.