Wiping is not needed but is important. A personal computer is not needed, but is important - I didn’t need to own a computer to complete my schoolwork.
If something is needed then it is important.
Your examples aren’t the same thing.
Wiping is not needed but is important. A personal computer is not needed, but is important - I didn’t need to own a computer to complete my schoolwork.
If something is needed then it is important.
Your examples aren’t the same thing.