I think it'd be fine, & I hope you don't listen to the one person that said it'd make you an 'irresponsible parent'. You're obviously not an irresponsible parent: your daughter gets straight A's, is responsible, and respectful, so you're obviously doing something right. And a piercing is going to make all of that somehow not count?
I mean, that's not even someone thinking rationally. But if it's something she really wants, I don't see why not. I'm sure she's capable of taking care of it, and it's not something she can ever really regret down the road.
When I was a teen, I had not just my belly button pierced, but my septum, nostril, tongue, monroe, about maybe 10 or so in each ear, and I had plugs, & like many, my tastes changed as I got older, and you would never know I had any of it-even the big holes in my ears shrank, and the facial piercings didn't scar, & there's just a teeny dot you can barely see above my navel. So it's not a permanent thing, and she can remove it at any time. I think too why not let her have more time to enjoy it-I mean, of course anyone can do whatever they want, I just personally think it's a look better suited for young people.
I think it would be ok, but children change, there might be a hidden motive or reason to have a navel piercing. Maybe you should ask her why before getting it. Other than that, it seems reasonable so go for it!
Hope she doesn't regret it later on.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.