JK and I are the same age. how true that we don't see ourselves age looking in the mirror daily, all the while we really are aging. at 30, things did change some as far as losing the youthful look. now, I don't look like the same person I was at 30.
edit: you also have to factor in he liked his alcohol and likely had a few years of it under his belt by 30. alcohol has a way of aging one more so than those who don't drink.