Does anyone here use checks to pay for things?

Occasionally when I in line at the market, someone in front of me will be paying for their groceries with a check. Just like my texting question, I am completely confused. Nobody I know has used checks in years, and the alternatives appear to have significant benefits. I am really curious – what’s the appeal/advantage?

NOTE: I’m not looking for answers that explain why cash is bad. I completely understand that. I’m wondering why people use checks instead of a credit card.

Also, if you do use checks – please don’t take this as an attack. I’m really looking for just an explanation.