I know Smallville is pretty much an alternate-Earth reality (isn't everything?). I hardly watch it, but when I have seen it, something doesn't seem logical:
If Clark meets people who figure prominently in his adult life (Luthor, Lois, Jimmy in this season) won't they recognize later that Superman is the hick kid from Smallville named Clark Kent?
I know this doesn't have bearing on his early life, but have the producers like, THOUGHT about this? I dunno, it bugs me. Just put him in a costume and do the show this seems to be shaping up to be, the adventures of Superman
Given the show's "Dawson's Creek with Kryptonite", I'm not surprised that hte producers probably don't care about this facet, though guess Byrne didn't either with the "Clark the well known around Smallville all-star high school football jock doens't wear glasses until he moves to Metropolis and becomes Superman well into his 20's" bit in "Man of Steel"... always one thing that bugged me about the current "Clark doesn't have a Superboy career" stuff (granted, the no-glasses-till-adulthood didn't stop the Golden Age/Earth-2 Superman, but that version had an ordinary childhood devoid of being a football jock/fighting various menaces/other high-profile elements to help protect his identity...).