I have a friend who has insisted her DC go to 6th form at school rather than college (the college offers A levels, but not a wide choice). I think she's silly as her DC aren't particularly academic and the ones who have already left school (she has quite a few DC) have got lowish Alevel grades and non have wanted to go to uni. all work in jobs that don't require GCSEs (she has quite a few DC
Her reasons were:
She wanted them to be with other teens their own age (college has quite a few student doing an extra year so there are lots of 19yo)
She knows the parents of her children's friends (ie she doesn't want her children Mixing with riff raff she doesn't know)
College only provides 13 hours of teaching per week.
(College actually givers as much teaching time as 6th form, but they don't have study periods so students are expected to write up work at home (they can do it in college if they want to) Teaching is often compressed into three days, so it looks like college students aren't getting as much contact time, when in fact they're often getting more.)
Her DC are able to do the Duke of Edinburgh Award with school which they couldn't do with college. She does have a point here, but I don't think it's worth getting low Alevels instead of a strong BTEC for a DOfE award.
Also, her DC didn't know what subject they wanted to do at college, so 3 A-levels they were a bit interested seemed a better idea.
My DC all decided to go to college to do vocational courses. One went on to do an academic degree. One decided he didn't want to continue in the same subject (I think he only took it because his brother had) he then took a year out and is now doing an apprenticeship in a niche area he has become about. DD has an unconditional place on a uni course next year. For them BTECs have worked. If they'd been academically able enough for Oxbridge it wouldn't.
You only have to look t the Higher Education Board on MN to see every third thread is regarding Oxford or
Cambridge, so it's no wonder MN seems to look down on colleges over 6th forms.