Hmmm. Well, of course parenting has become ever-more hands on over the past 20 years!!!
Personally, i think it's healthier for kids to grow up without parents organising and supervising all their homework. I don't agree with h/w for primary aged kids at all.
And, at high school, they really should be able to organise things themselves. If a child is bright and you have done a good job in the early years, they will be pretty mature as teens. I think all this over parenting is what's infantalising them.
My dd1 and ds3 are my brightest and got straight As across the board and 1st class honours degrees.
Ds 2 also went to uni. Other 2 have not gone to uni.
We started savings plans for them all as babies. Each of them left home (the ones that have left) with approx £10k each and they have been on their own from there and bumped up with work whilst studying.
I always worked at home as a childminder but my previous career was in speech and language therapy so all of my kids started primary able to read and well ahead with school readiness. I put in lots of time during the pre school years (my kids are all well spaced) and that set them up to get on.
2 of my kids did have private tutoring on maths at high school level but i really did not over involve myself in homework.
Having a bigger family creates kids that are able to manage things more independently i think. And that's a good thing!