People don’t like having to bend over to get their drinks...

People don’t like having to bend over to get their drinks. We really need to raise the bar.

This is a pun. To raise the bar is normally a colloquial phrase that means "to increase the requirements for something", but in this case, it is also being used literally, as in "the thing that we place alcoholic drinks on needs to be moved higher so that our customers can more easily access it"

I really like this joke.