Today's sign that I'm getting old and cranky

Twice in the last two weeks, I've walked into a store and had a clerk (both young guys) shout out, as a greeting, "Hey buddy."  Now, I didn't know these clerks nor am I a regular customer there.  Instead, it's the new "may I help you".  I just ignored their greeting on the grounds that we're not yet buddies.  The greeting bothered me a bit, but I was probably more bothered that it bothered me.  Getting old...