I'm just old enough to have watched Sesame Street when Grover was a big deal and Elmo had yet to become huge (late '80s), and he was the main character I glommm

I'm just old enough to have watched Sesame Street when Grover was a big deal and Elmo had yet to become huge (late '80s), and he was the main character I glommmed onto then. I still don't get Elmo's appeal.