Your Grandad was right (off road)
Your grandad and dad taught you right for the dirt they were riding. Off road riding emphasizes the rear brake a lot more than street riding does, it's just incredibly easy to lock up the front. For those with Long Way Down, Ewan does a classic front brake lockup crash in the movie. Doesn't work so well on the street though.Its sort of sad thats what my grandfather and dad both taught me when i was little. My dad rode with out the front brake all his life, only had one accident and it involved a tree in the middle of the woods. Then again the biggest bike he rode was under 200ccs and he didn't see too much road time.