Okay in relation to what?

Socially speaking, people will look at you weird.

Hygienically speaking, a bad idea as constant moisture etc. risks both bacteria and fungal infection.

If you touch things that other people touch with saliva in your hands, you might run into some trouble because again, it’s unhygienic and most people will think it gross.

If you’re cool with all that, you do you but other people don’t have to be cool with you doing that.