It has everything to do with the comment you replied, you just chose to purposefully ignore the obvious point.
I was responding to this blanket comment.
> Laws discriminating on age should be repelled everywhere.
I disagree with that and gave various examples as to why I consider that to be a bad idea.
I stand by the comment as do many other people based on the upvotes.
I could be born in 2008 or 2007 either way I need to be 16. But I could be born in 2007 and buy smokes.