My kids are meaning we don’t do this. Obv we haven’t been able to for a long time due to covid but we didn’t much before. I have three kids of primary age and if one has a play date the others just annoy them and if they go to someone else’s house the logistics of fetching them often difficult due to bedtime etc of the others. We facilitate as much as possible but it’s difficult. Which is a shame as I used to go to friend’s houses a lot as a kid. On the other hand we go to the park near school at least three times a week after school and they are friends with all the kids who do that and play with them each day in the park, but these aren’t necessarily their close friends.