I play for the experience as well. I was introduced to it when I was in elementary, and my friend was a big fan of it. I played it for the first time on my PS4 around 4th or 5th grade. Ever since then, I've found Goner Kid twice, no Gaster, and I've beat the genocide route once. It felt bad that I have finally killed sans after several attempts on the genocide route before. At least Undertale can forget my actions when I remove my saved data from it, but that ruins the fun of the game over time. (this comment feels random lol)