Less vs. Fewer for validation message?
Should an inputs validation message read as A or B for each of the following?
A Nick Name must be 10 characters or less.
B Nick Name must be 10 characters or fewer.
A Number must be 10 digits or less.
B Number must be 10 digits or fewer.
A Name must be 10 letters or less.
B Name must be 10 letters or fewer.