Thinking about coaching my kid's T-ball team

Never played organized baseball but my son is turning 5 and wants to do T-ball. League is looking for parent volunteer coaches. Part of me thinks it'd be fun and a good bonding thing, but also I have no idea what I'm doing and I'm worried about looking like an idiot in front of a bunch of 5-year-olds. Am I overthinking this? Should I just commit?