It is funny how we all judge differently.
If I see a big boy holding his mum's hand I think: "Awww, sweet!", it makes me smile.
Another might think: "Noo! This is all wrong! Poor kid will be stigmatised for life! What if his friends see him!"
My 12 yr old is very immune to peer pressure, so far (secondary school may well change that) and in Y6 would think nothing of giving me a massive hug at pick up time. He's just a very touchy feely kid.
My much more gregarious, cool 10 yr old does not even allow me near him. i respect that. he wants to be a "cool" kid. Fine.
But I think as a parent, you just go with your kids preferences int his respect, no?
And some kids DO like their parents to take them to school for the first day of Y7. It doesn't mean they won't be independent soon enough, IMO