Do you accept invitations out?

I honestly didn't at first but then it really came in handy with one of my stories, my sim ended up having two kids by a married sim who also had two kids, his marriage was in a bad place and one thing lead to another but when he decided to stop cheating and try to work it out with his wife he still called his kids and ensured that the kids always hung out and always had a relationship and he would take all four of them to the park to play and talk and just be in each other's life regardless of the messy situation (in my head at least) but you can see how it added realism imto ky story lol!