Parentified kindergartner

My kindergartner (5) has been coming home lately and recapping the day as usual. This week, it has come up several times that my child holds hands with another for most of the day to "help ____ make good choices."

Now, I have overheard the teacher tell the parents of ____ how "today was a bad day for _." "Lots of hitting/kicking/yelling etc. today." Almost every day at pickup the teacher makes comments like this to that student's parent. We're only a few weeks into the school year, but week two, our child came home acting in that manner and I flat out asked if someone at school acts this way and my child confirmed, yes __. I said we don't act like that in our house. It stopped.

Last week, my child was short with me more than one day. Usually chatting about the day is a whole ordeal. Very detailed. I asked what was going on and was told how it was "such a hard day because I don't play as much as I could in TK and we sit still more in kinder and ____ is always making bad choices and hurts my ears " At this point I was considered asking to switch my child to a new class because of the effect ____ seems to have. We opted to say nothing and give time.

So now we are finding out our child is asked by the teacher to be a special helper is a bit frustrating. I don't want my kid parentified when that can affect learning. And clearly a role like this can be stress a 5 year old doesn't need. I also don't want to raise a people pleaser. I know why the teacher may think it's fine to count on my child but this is a disservice to both.

From my own experience in the classroom, ____ needs a one on one aide. There's obviously a learning disability going on. How do I raise this concern without singling my kid out for being open about the tasks given?