I suggest 16. It’ll be better if done at an age where you aren’t growing or gaining or losing weight much like i was. Overall, as long as you don’t mind it, it’s not shown very often and very, very easy to hide so if she’s able to take care of it, all’s good. Belly button piercing can be controversial.
Besides, can you get a belly button piercing at 13?
– Minors aged 14-18: Written consent from parent or legal guardian for body piercing, PLUS a parent or legal guardian must be present during the procedure. – NO TATTOOS OR BODY PIERCING FOR MINORS UNDER 14.