Friends of mine who earn over 100k tend to have professional qualifications, have worked in their profession since graduating and have worked their way up- often putting in hard slog in their late twenties/ early thirties until having a family when they’ve often taken their foot off the pedal a bit, or had a partner do the same.
We are in our forties now and several have either gone part time, or their partner has, but they still earn high pro eats salaries or freelance rates.
Their jobs include: Lawyer in the City (several!), anaesthetist, owning a large independent vet practice, product designer, psychologist in private practice, academic (material scientist in the US), classical singer (very successful, touring internationally), engineer in the nuclear industry.
There’s a lot to be said for getting your head down and getting a good, well remunerated and in-demand profession behind you. It makes life much easier financially. That’s certainly what I hope my girls (and boy) will do.