Birthing classes?

How many people are and aren’t taking birthing classes? I feel like it’s a lot of money and I’m thinking about just winging it😂 I have 4 sisters that have kids that haven’t taken classes and I think they can teach me a lot of things also my mom and boyfriends mom as well. So I feel like I wouldn’t need to take the classes. Although I know I’ll learn so much but I don’t think I should be spending my money on that. What are your guys thoughts on birthing classes?