Suspection of narrow clavicles

[foidgrapist148867]

Hi
I'm almost 15, 179cm already, but I think I may have narrow clavicles and it will stay like that forever. I measured them and it's 41cm wide. My father has wide clavicles and my brother which is 13 so 2yrs younger has almost the same width as me. Will it improve or should I ropemaxx already?

 

[MOGGER4562]

Don't rope cause there's no such thing as reincarnation