your form must have been shit or you are lying
You have GOT to me kidding me

No, my form wasn't shit and I'm not lying. I'd trained diligently since I was 14 years old and 140 soaking wet. By the time I was about to turn 18, I could do singles with 315. I weighed about 205-210 at the time.
I strongly suggest you peruse Youtube; it's probably rife with examples of teenagers benching over 300 lbs.
I don't know what else to say, really. You're acting like I've claimed to know a bunch of kids who benched 500 raw whilst weighing less than 200 lbs. You know, like "Coach Is Back" or something. I'm talking about THREE-HUNDRED, not FIVE!

Or to be more precise, 315ish. If you think that's so unusual, I'm sorry, dude, but good as you're looking lately, you must've just been handed VERY bad genes for moving weight. Anyone who lifts seriously for a couple of years and can't bench 315 or close thereto has problems IMO.