I drop ds2 off at playschool between 10 and 12, depending on our plans for the day.
today I dropped him off at 11.45, and he went and sat down for lunch. One little girl took issue with his arrival and started shouting very loudly "You're LATE! YOu're LATE for your lunch and that's NAUGHTY! You're NAUGHTY!"
This was ignored by the staff until I said "can you NOT let the other children have a go at him for being late please? for a start, he's NOT late and also, he's not in control of what time he comes."
And the playschool leader then spent some time telling the other children that they aren't to tell ds2 he's late, he just comes in at different times sometimes.
However, I have the niggliest of niggles that this was mainly for my benefit and that she only intervened because I practically told her to.