Not Jurassic Park necessarily, but this is kind of how I unofficially judge the situation. If I make pop culture references that you don't understand, you're probably a bit too young. Right now I'm dating (and I use the term loosely) a girl who is 5 years younger than me (we are 23 and 28). We get along extremely well, but every once in a while there are moments that make me think, "Wow, she is really young." I can't really blame her, though. She's about as mature as I was 5 years ago, and I feel like I've grown up even more since then. Maybe it'll work; maybe it won't. Doesn't mean it's not worth trying.