My DS is in YrR. Recently turned 5. Progressing well with reading, no SEN or other issues. When he goes to the toilet he says "I'm just going for a toilet". His siblings (one older, one younger) and DH and I both say "going to the toilet" in the normal way. English is his only language so it's not a translation on his part. He's always said it. I've started correcting him but I don't feel entirely comfortable doing it. I think I should continue to correct him and explain what the correct sentence construction is but can anyone please reassure me this is the correct approach to take? Thanks.