I find that strange, but that's just my unique perspective that my mother has instilled in me.
“I havedeveloped feelings for her as she’s very mature and wellspoken for her age”
It is always the same thing they say. Hey, don't make any nonsense excuses if you want to f*ck her. Lemme be frank and give you a little sneak peek on what's probably going to happen: she will probably break up with you since, at eighteen, you don't truly find your soul mate. Instead, she needs to take time to learn more about herself and the world can offer to her. Accept this as a temporary ride, and don't be bumped if it ends sooner than you anticipated.