Michael Phelps.....does NOT need to apologize

Why did Michael Phelps feel the need to apologize for inhaling thru a bong?? Please, 80% of the US population has tried this stuff at some point in their lives. Second, why apologize to the public, the public, who is comprised of druggies, two-timers, rapists, drunks, liers, cheaters, etc?? Really, should'nt we all be apologizing to each other then? Why does a guy who has worked so hard to get where he is have to apologize for having some fun, it IS HIS LIFE still isn't it? Or has he become the publics whore?