Certainly there are side effects of the cloning process, some of which were a driving plot point of the film. Hair loss isn't too hard to ascribe to that. OOU, though, it's simply a failure of anyone to think, "Hey - weren't there some appearances of a younger Picard in TNG? Maybe we should check those out."
"We've been over this. We don't shoot first and ask questions later." "Of course! We never ask questions."
Sure. People scarf down dozens of regular sized hot dogs in eating contests, so why not one mega dog?
"If you can't take a little bloody nose, maybe you ought to go back home and crawl under your bed. It's not safe out here. It's wonderous, with treasures to satiate desires both subtle and gross... but it's not for the timid." Q, Q Who