I and probably 90+% of people outside the area had no idea on what Hakuna Matata means before Lion King. But then it is an expression that belongs to everyone.

I and probably 90+% of people outside the area had no idea on what Hakuna Matata means before Lion King. But then it is an expression that belongs to everyone. You can't use it in t-shirts, cups etc with Lion King figures already as they have their own protections. That should be enough for Disney...