I'd need capital as well as financial independence, but I'd work on free / at-cost daycare, including for shift workers. Working in infosec, I've often thought that one of the reasons (not the only one of course) that we have so few women at the senior levels is that so few women can take the typical entry route (night shift SOC) for family reasons. I'm sure there are many other similar professions.

If that didn't work out I'd lie on the couch, get fat(ter) and read philosophy and history. Less meaningful but still a pretty good life.