What does a membership in AARP give?

I’m having a milestone birthday next week, and I’m thinking about things.

I started getting mail from AARP many years ago, but I’ve always ignored it.

What does a membership really get you? Is it worth it? How much worthless mail or email is there?

Do you get good benefits from it? Are there pluses?

I really do not want to have to carry a membership card in my wallet.

Your thoughts are welcome.