Is she too young?

So I have a girl neighbourhood, we know each other very well and we’re friends, but recently I started to have feelings towards her, we’ve been to a couple of dates like legit dates just the two of us, but I’m not sure if she has the same feelings like I do.
But here’s the big catch I’m 21 and she’s 15 🥲 I know that most people will think „you pervert! She’s not mature enough to understand love and all“ but trust me when I say she’s something different she literally talks and thinks like a fully grown adult.
The real question would be what somebody else thinks about this? Is she just too young for me and just let go of my feelings, or should I talk about it with the girl and her parents?
Yeah, her parents know about me and the dates we’ve been to, and they seem to like me and trust me
So please share your opinions, maybe I’ll help me
Is she too young?
Post Opinion