Dc's school have some sort of church activity 3 times a year. I let my dc choose whether they participate. We are not Christian. They used to have a TA supervise one classroom with, say, a film and an art table, for non-churchgoers.
But, as the cohorts have moved the n, fewer and fewer children across the school are being withdrawn from RE activities. The school tend to schedule these trips in the afternoon, and now encourage non-participating children to be collected from school after lunch. Often my youngest dc is the only child remaining at school.
AIBU to r fuse to collect him? I'm at work, and he is registered at school that afternoon.