He doesn't look that old, and if he is less than 20, and juicing, he isn't going to get beyond 5'5". If he is naturally that short, well, I can actually understand him wanting to be bigger. I am about 6 feet tall, and have an older brother that is 6'7" and 330 lbs. Things like that can really work your self esteem inmy opinion. I am by no means short, but at 6ft tall and 225 lbs, I'll never be "big" compared to my brother.