I'm curious as to why you'd wanna uninstall it. Most of my apps come through there as they're opensource and have been vetted not to contain any unwanted features. I only turn to Google Play as a last resort and I will try to run my next phone without it. -- If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas. George Bernard Shaw
F-Droid does not have particularly a helpful name for itself. To a parent who is Droid illiterate, the app sounds like a trojan or worst if one sees it on the child's phone. I am winging it here that could be the only logical answer.