This is my opinion.Banks won't make you rich.saving in bank can never do that,because of interest rate that bank gives you is too tiny.You saving will be simply be eaten up by the sleepy monster called inflation. As a example I will take ,When I'm in grade school,each day I received 10Rs (my country currency) from my mother.It was enough to by me 2 meals,but in now 10Rs enough to buy 2 candies. 
Banks are just for keep your money safe! 
Perfectly right on this mate,banks only uses our money to make them rich,but we remains as poor,given 2-6% annual interest,this is over kill for the depositors..while in crypto we can make 10-20% a day if eere lucky enough..this is why many people are using crypto now than banks because we are aware now on whatw we can have here Banks are just for keep your money safe! Yes of-course mate.I think this is the main reason that Banks are always fear about crypto world!