Friends of mine who went to a grammar, and my/their children and their friends who went to a girls’ grammar were taught that they should do something they’re good at.
Some work for British Aerospace, some are nurses and doctors, some are lawyers (my niece for example) some are teachers, some university lecturers, some social workers, some (one of my granddaughters) are Educational psychologists, some technical staff.
Some on the other hand work in retail, Some (shock horror) are SAHM doing a good job with the next generation.
It’s what you do with your education that matters, whether you’re a SAHM or doing paid work, not whether you went to a GS or not.