CherokeeDriver, IMHO that's a bit of a sweeping statement!
Now that pax have to check-in at airports much earlier, due to more robust security checks, what do you expect them to do whilst they wait for their flights, or suffer flight delays? Airport owners would love them to shop, but otherwise what is wrong with having a convivial drink before boarding. As usual in these matters, it is the exception that over-indulges and, if TV programmes are representative, these often seem to be those who are scared of flying
(or is that a TV thing?)
MacDonalds? Haven't indulged since my kids left home!