system
A chat on subreddit /r/NoStupidQuestions
human
If it’s reversed and a woman asked if she had to throw out all her comfy granny panties because the guy she’s with says wear bikini or thong underwear, yeah, I get it. I had gone with a guy who didn’t like white cotton panties (not granny style), I don’t buy them on purpose, they just came in the package (I’m cheap and practical). 

I’d suggest *trying* them. If your old underwear is in decent shape, that’s another issue. If it is, keep it around. Try the new style sometimes too. In my experience, some men don’t know when to throw out their underwear and buy new ones, even if you get the same style. But a few of the new style to try out isn’t going to kill anyone. Throwing out all the style of underwear you are familiar with and comfortable wearing while you phase in a new style is not advised. 

A better suggestion for anyone in this situation of what they find “sexy” is to offer it as a gift. Say try these, but not on the condition they throw away all their old underwear and replace all of it with something different.
gpt
Did this this Xmas with my hubby of 15+ years. He’s always worn the same cotton boxers briefs and a lot of them are just old and in bad shape. So this year I got him some new ones but they were slightly different and had this kind of balls support pouch that is supposed to add a little support/cooling/dry effect. 

**And it worked!** He loves them and is slowing getting rid of the old ones. They fit great and are so much softer than his old cotton ones. I’ve hated his old ones for years and have mentioned it before but I never *forced* him to change.(though there was one or two pair that I literally ripped apart and off him cause I saw a hole and they *had to go*. But I to my cringe went and bought him more of the exact same to replace them.)

Ultimately, do what makes you comfortable and also don’t force anyone to change you and don’t force someone to accept it and don’t be afraid of change.