What people shouldnt invest in and what they do are two different things.
We are talking about the retail investors here. They are usually late to the game and have little knowledge about what they are investing in. Look at all those who were holders of MBS. Do you think the financial services industry took to time to properly explain that to those people?
So yes when given a choice by their broker of buying something lhey know in bitcoin or NEO, which do you think they will buy?