For the record, I was NOT suggesting that state schools only educate plumbers and electricians, decorators and beauticians; nor do independents cater exclusively to those destined for first rank universities. Good schools, whether private or maintained, aim to open students' eyes to a range of occupations and opportunities that they and their families may not have encountered firsthand, and to develop the skills and confidence that with effort , ability and persistence, then doors will open.
My DC, who attended maintained and independent schools, does not currently know what career to follow, so has postponed applying to university. The A level points will be enough for a decent but not world-class university. Meanwhile, DC is a junior chef in a five star hotel, earns £22k pa after 11 months (for atrocious hours TBH) and is prized by the hotel for reliability, punctuality and the ability to recruit old mates for casual vacation work.
One teacher has invited DC to speak to (a modest independent) school to explain that there are opportunities out there which don't require incurring £50k in debt over three years and that, until you have a direction to follow, it may not be the right choice for everyone. Clearly, if a person wants to be a doctor or dentist or astrophysicist, then a degree is the next step. Conversely, another teacher, who is a friend, is hellbent on persuading DC to apply for uni next year!