This is not true, you can't buy a ticket without identification and you can't get past security unless you go through several other checks. Going into a public

This is not true, you can't buy a ticket without identification and you can't get past security unless you go through several other checks. Going into a public area like out on the street is not even similar at all. Airports are not public locations, they are much more similar to the interior walls of a private business than a public location, which doesn't require you to pay to enter and produce varying amounts of identification.