I’ve been biking for over 30 years. I’ve broken a helmet in a fall. I know how to fall.

ALWAYS WEAR A HELMET! It very well may save your life. Many crashes happen much too fast for you to react to.

It’s like a seatbelt or airbag in a car. Useless 99.9999% of the time. But when they’re needed they can dramatically improve your chances of survival.