To ask if there is an impact on clsssmates if lots of kids are being tutored?

[westcountrylovely]

I hope this is going to make sense! We don't live in a grammar area, but there are some options outside of here that kids can apply to.
DS is just about to go into yr5. He's decided that he doesn't want to do the 11+. That's fine with me. Academically he's pretty average. He's doing fine at school, no probs but not excelling at anything either. So I don't think the grammar route would suit him.
Anyway, there are now a lot of children in his class who have just started started tutoring for the test, or have been doing it for a while. Talking to friends who've been this already, the level they're working at in this process is really advanced (so early secondary level).
I suppose I'm concerned that my child, who is already in awe of how "smart" some of his friends are, is going to start feeling even less smart as those friends are doing over and above what is done in class.
Is this ridiculous? AIBU to worry? I'm new to this so help!

Anyone?

Feel free to ignore me as my DS is only 3.

I'd go with something like 'Yes, your friends are doing really well at Maths/English etc because they've been doing lots of practising for their 11+, but they have less time for Cricket/Music (something your DS is good at)'

The gist is to emphasize that everyone is good at different things, and that his friends have had more time than him to practise Algebra/Grammar etc.

My children are at an international school where peers are tutored for hours and hours from nursery age.
I can't bring myself to pay someone but am aware somethings don't stick and need revising even if it is to give children an extra confidence boost.
My eldest is going into Y5 and I got him Andrew Brodie books to work through over the summer. He happily does a page of each curriculum area a day. I'll probably keep this up during the year.

@habibihabibi that's kind of the issue for me though. DS gets plenty of homework. Too much in IMHO. It's a struggle to get him to do it, so the thought of trying to get him to do more fills me with dread! But why should he? I have actually thought well maybe I should get him a tutor anyway to get the best out of him, but he'd hate it! And why anyway as school are teaching him what he needs at the appropriate level.
He's super sporty, that's his strength, so he likes to spend his spare time being active. As so he should.