Why do I have mostly older guys hitting on me?

I swear ever since I like hit puberty I've had way older guys hitting on me. I'm 16 now and I have guys from the age of 18 to like 35 approaching me. I honestly cannot remember the last time a guy my age approached me. &People always seem to be 2-3 years off of my actual age but I don't think I look THAT much older. I have no idea what is attracting them to me... I'm only 5'5", I weigh 123 lbs, I'm a 34C and I have a slim figure with "african curves", people often tell me I have "the perfect body shape" but I often deny it out of modesty, is this why? Cause of my body shape?