I am not religious at all, despite being taken to church very regularly by my mother when I was a child.
I used to have sleep overs at my cousins place and would then attend mass with them, that also didn't turn me Catholic, despite me thinking their mass seemed a lot more interesting than what went on at my own church. The rituals, the standing and kneeling and standing a kneeling again, then a snack and drink break for the adults (communion), all totally fascinating.
I'm still not religious, but do think it's a good idea for background knowledge, understanding of others around me, that I have some first hand experiences with churches and religion.
I think if someone is looking after your children, them going about their own routine seems reasonable. Otherwise you stay home or find someone else to look after the kids.
That's reminded me, another bonus of a sleep over with Catholics, fish and chips on Friday for dinner. You can see it's really shaped me.