I've been watching a bunch of skateboarding videos on YouTube where people really mess themselves up. Almost 100% guaranteed they're not wearing adequate protection. Even the downhill longboarders!
After my first few falls, I decided to pad up - elbows, knees, wrists(!), and helmet. This has saved me loads of times. I know guys in their 50s and 60s still skating - they all wear protection. It's the only way. #skateboarding