I've had a few parents lately who have suggested doing something that would move them beyond the role of just a client and more into the role of a friend. For example, inviting my kids to their children's birthdays, going out for playdates, etc. I had one parent the other day ask if me and my child would like to go trick-or-treating with their family!
My first instinct, which I generally think are right, is to keep it strictly business. I don't think it's a good idea to mix friendship with business. I'm wondering what everyone else thinks/does. I'm also curious how you respond to these sorts of invitations if you don't want to go beyond the roles of client/provider.