The type cannot be changed
What you are seeing
In the edit form, Type is greyed out with The type cannot be changed.
#Why it happens
By design. The type is fixed when a variable is created (Fixed once the variable is created.). Every page that shows the variable expects that type, so changing it in place could turn a date into text or a person into a number on pages you cannot see.
#What to do
Create a new variable with the type you want.
Point each page at the new variable.
Delete the old one once nothing uses it.
The full steps are in Retire or replace a variable safely.
#Related
Found it? Good.
