Mine had no idea at all. Ds1 is now 32 and studying for a PhD in order to become an academic in the US.
Ds2, aged 27, is almost at the end of a psychology PhD and has just put off the decision of whether to remain in academia or venture into the outside world for another year.
Dd1 (20) wants to be a frontline reporter. Hope she changes her mind.
11yo dd2, meanwhile, wants to be a vet and a teacher and a doctor.