The year is 1982. Rodney Mullen just managed to perform the world's first "Ollie" skateboarding trick, that can be count as somewhat the start of the modern day street skateboarding.
What now is the most junior skateboarding trick (with available equipment, training etc.) was not a low-hanging fruit back then. While looking back, you can easily learn the trick by imitating; but back then there was no-one to learn it from. You had to go trial-and-error a sh*tload of times before making the first trick.
Of course it looks sooo low-hanging fruit now. With current equipment and support. But you have to realise that the tools and methods came afterwards, to support the original invention. But looking the time back then, you had none of the aids. Just you, climbing to that tall tree to grab the apple and plant the seeds so everyone else could grab the fruits from smaller trees.