I prefer to have only a single wallet because more wallets mean more passwords and other stuff so I like to keep things simple. I think it works ok this way.
Actually my thought, I would not want to have a lot of password which is really a hassle thing. This is why I tried to find a good multiwallet but most of it or all of (it aside from hardware wallet and Hodler wallet)gives no full control for the users. Its good that a team is now developing a opensource multiwallet This will surely give the user the confidence on their assets.