It's a rather unpleasant thing to do imo. Our children were pleased when some friends from school were allowed to come here to play. All went well but a couple of hours in, the 3 visiting children produced various leaflets and tried to persuade us to become Jehovah's Witnesses. The children were aged 6 - 9 at this time. My children went to Church and Sunday school, were in the Brownie group locally. They had never been evangelised before and were uncomfortable when they came to tell me.
The children's parents arrived and continued the attempt to involve us in their faith. We were polite but said it wasn't for us that we went to our local CofE Church. Needless to say, our children weren't invited back and future invitations to this group were ignored.
Pyramid selling, Ann Summers, Tupperware, Avon - you know what you're getting into but a summer tea party in the garden, with 3 tables and an opportunity to wear a summer frock, what a rotten thing to do to your guests.