I'm 10 and I have itchy little bumps. Mom thinks I won't need a training bra until I'm like13.

Maybe you can reach a compromise and get a sports bra. Some parents look at milestones ( like the first anything ) and feel as if they are getting older. Some look at it with regret. Some celebrate it. Since this is about your need then it might be about compromise. Most of it depends on how your developing as to how soon you need the real support of a bra. But if your uncomfortable or if its because your friends own them then allow your mom to make the decision but also discuss with her in a calm fashion your feelings on the matter. But always respect her decision.

A bra won't help it if you're itchy.

Are a lot of your friends getting bras now?

If you feel you need one... you should talk to your mom about it... but it's true it does not help itching. Bras are for support mainly... but if you think you need one sit down and talk to your mom about it.

I have the same problem and I am ten but I am to afraid to tell my mum she thinks I should be 13 at least too... :(