Selling My Ball Python? </3

[Carl]

The thing that my mother is really concerned about is that she thinks my snake will grow too big and possibly escape its enclosure...

Lol when I was ur age my mother told me the same thing. Just explain the basics to her. Show her the type of enclosures that an adult python lives in. Show her the ones from AP or show her the ones from petsmart or petco. Explain to her how escape proof they are. An adult python mostly gets up to 5 feet if its a female. Males tend to stay smaller. Five feet is SMALL in this hobby. I would just explain how these animals survive. These are not kittens or puppies lol. The snake does not grow bored. Its happy enough just having a enclosure to feel secure in. If she let the snake go it will not survive on its own for long