Ds was on top table for a subject he likes and is good at - he didn't get on with Child B who is known for being confrontational to other children so Ds was moved down to next ability group and not child B. Ds feels a bit sad about this as teacher even said to me that child B is known for making fun of others a lot but Ds has to learn not to react and that he had moved tables that day. At the time I didn't know how my son felt and ability wise they are both very able in this subject and ds is probably slightly stronger - but overall academically child B would be higher level and they are also middle class where we are working class.
I've tried to tell ds that the table doesn't matter and he can still work well on the group he is in now - but he liked and thrived by working with a group who were similar and higher ability than him - so he is now on a table where he is being asked for answers from the others. Is it worth asking teacher why he moved ds even though it's common knowledge that child B causes and still causes a lot of issues.