That's the advantage of this new world: Low transaction costs (let's ignore BTCs current state ;)
You can take $100 and divide them among... let's say 5 coins/tokens. Buying 5 different stocks would eat half that sum, exchanging coins willl not. Over time you can switch coins or expand your portfolio, all at a small cost.

Also, searching for something to diversify into, you'll automatically learn along the way, wether you invest or not. Can't go wrong with that ;)