These are great, especially if you have kids, but you do end up slamming toilet seats everywhere else.

Yep I have that problem now. All the toilet seats in my house are soft close and I slam public toilet seats whenever I'm out of the house now without thinking

Isn't slamming elsewhere a reason not to get one?

I can relate to this so much. When I bought my last house it didn't have soft close seats and I was so used to it that I slammed it every time.