I'm sure you never heard "if your friend jumps off a bridge would you?" question growing up. But it seemed to be very common saying in my family and in others at the time. So it seems like kids were making bad decisions based off of peer pressure well before social media. It's only that it goes "viral" that anyone pays attention at all. Just more ammunition for the "kids these days" type of people I guess.
Deep water Jetty's are way more fun - from the deck at a king high tide, barely ten feet, from the top of the service shack at a King low tide, fifty feet and more.
Plenty of time from primary school to junior high to work up to a proper jump.