While I hate to admit it, this is true. Comic strip creators seem stuck in the fifties and sixties and I don't know why none of them try to shake things up. Are they scared? Do they not know how to place themselves in modern times? Do they submit edgy comics but their editors say 'No!'? I want to believe that the creator figures that since the space allowed is so small and anymore, the comics page is so trivial that they just don't bother doing anything that will make headlines.
Or they are a bunch of golf-playing morons that really are stuck in the 1950s. I don't know...
However in Chip's defense, he seems to be trying in some cases and I do like Gladys' response to Brutus in the last panel. The chef's hat is a bit much though.