As you are, I am free to parent that way I want, and to disagree constructively. However, you are not changing my opinion not one iota as I am not changing yours. I like being able to find out where my family is if needed or just because. And vice-versa as it relates to me.
That's okay. I wasn't trying to change your or anybody's opinion. Just expressing my own opinion as I'm allowed to do on this forum.
Again, Find My iPhone can do the job of finding out where your family is if needed, making Find Friends unnecessary except for the convenience of not having to remember each other's iCloud password (in your case) or if you want to constantly monitor your kid (unhealthy IMO).