SUBREDDIT: r/relationships
TITLE: Me [19 M] with my brothers friend [16 F] (3 months), I want to go travelling around the world with her but I'm not sure if it's the right call.
POST: I'm buzzing, I just came back from a "date" with her and it was just the most brilliant thing. We went out to karaoke and she just has this angelic voice, and then we talked and I just know that I want to spend more time with her. On our way back we passed a travel center (I can't believe these still exist) and she mentioned that she would love to travel, especially to somewhere like Europe.  

I've just finished high school and I want to travel around the world and see the sights, I think it'd be fascinating to go around the world and explore different cultures before I start university, and I want to take her with me. She obviously loves travelling, I could see it in her eyes and just being able to spend more time with her would easily be something I want. I know I would love every second of time I spent with her travelling.I'm really scared though, there's a 3 year age gap and it just feels awkward, all my friends are secretly judging the fact that she's so much younger than me. I know my parents will support me no matter what but it's hard to get over that fact that everyone's judging me. I hear people calling me a 'peado' and it hurts to think about it, I know not to listen to what other people think but it weighs on you, I'm not sure whether or not to ask her to travel with me or leave it, I know I really do enjoy spending time with her and I want to date her but the age difference really is messing with me.
TL;DR: 
I've fallen in love with my brothers friend who's younger than me and I want to travel the world with her but I'm not sure if it's the right idea. Thoughts, opinions and ideas are welcome.