Is it legal to buy a vibrator in the United States as a 15 year old?

I’m 15 years old and want to buy a vibrator. I don’t have a credit card so I can’t get one online, but there’s a rite aid near me and I can get one there. I just don’t want to be carded, that would be so embarrassing!!! So will they card me, and is it legal?

Please don’t judge, I’m looking for legit advice here!