Lucky for her, she didn't totally forget about it. Bitcoin at $50 for somebody who is clueless about what it is and doesn't know much about wallets, backups, private keys, etc, it might simply be forgotten. It is really good for her that she's still able to access it. She deserves it.

Many lost access to their Bitcoin in those early years not just because of low value but also because nobody thought it would rise this high. Many must have easily threw away hard drives containing a few Bitcoin because it was only worth a little.