We've spent the last few years encouraging our teenage son to be self sufficient and rely on no one but himself.
We've steered him into getting a wide range of GCSEs (science, humanities and tech), sought after A levels (Maths & physics) and he's now at a top 10 University doing a Maths degree. So hopefully, that's his education/career options maximised in terms of ability to get a top job if he wants that or plenty of choice for different career paths.
We've made him as self sufficient as possible in terms of home/life skills, i.e. shopping, laundry, gardening, DIY, etc., so hopefully that's his home life sorted.
He's well informed re personal finances, he has his own current accounts, savings account, ISA, pension, credit card, etc., and understands tax etc., so should be OK with wages, debt, etc.
Who knows what's around the corner re the country's finances, job market, investments, employment, etc. Too much uncertainty to be reliant on others or to be naive about the necessities of life. His teen years have been spent preparing him for self sufficient adult life. Neither me nor OH have long life expectancies due to health conditions, so he'll be "on his own" sooner than he thinks, maybe before he even graduates from Uni, so he really will have to hit the ground running and won't have family behind him to support him.