Why do a lot of investors stay away from medium to larger multis?

[Justin Westmoreland]

I have been listening to a good amount of podcasts on here and it seems to me that most investors who invest in multi family are staying small meaning anywhere from 2-15units. I understand that it depends on each individuals goal and it takes a larger deposit to get into medium/large multi family. Are these the main 2 reasons why a lot of investors stay small? Or is it just fear and they are just thinking small? What are your opinions?