Of course their are boundaries. A church that is large enough and has the ability can open a school, a day care and other things that provide wholesome alternatives to the pagan culture.
Isn’t that kind of what the Boy Scouts are too? Nothing wrong with churches joining Upper Basketball or setting up clubs and activities for kids. Lots of churches offer alternatives to Halloween these days too, nothing wrong with that.
The boundary is to make sure these things are wholesome and are real alternatives.