My 11 yr old wants a public twitter?

[Emily💕💋☀️✨💜💙]

So my 11 yr old and I talked about twitter and she's getting it - lots of her friends are on twitter and some of her friends twitters are public she really wants it public but I'm worried. Should it be public or private. And if it's private should she ask me before she lets someone follow her or her follow someone else like she has to ask and I have to approve before she follows someone plz tell me if it should be public or private
Thank you
Emily 💕💋