Anybody’s kinders still need naps?

My 5yo twins seem to have high sleep needs and napped pretty consistently until 4yo, with barely any issues going to sleep at a decent hour. Now at 5 (6 in May) they will still occasionally fall asleep after school. Their school day is only until 1:30pm but they are still so exhausted. Idk if I should be worried because kids their age can go and do activities after school no problem and mine can’t hang. Even if they don’t sleep, they still really need quiet/relaxing time after school. I’ve taken them to run singular errands after school and they are whiney, irritable, and just unpleasant. They go to bed around 8pm every night and wake up between 6-7am.

Anyone else’s kids like this?