For general attire you can wear anything you are comfortable with. In stricter moral or religious settings more and simpler clothing may be required by society. In dangerous settings you need protective clothing.
They do not need to wear something unless you make it for them
who need what they
Wear a suit. Or, there is a chance that you need to wear your graduation gown
because they need to adapt to the environment of the desert.
they need to wear the same clothes of a girl firefighters
No, there is no need for a goalkeeper to wear a cup.
zoo keepers always need to wear thongs
They need to wear something that is thick and something that is a space suit... they for sure need to put their pee on their face.
No, Shane comb does NOT need to wear a bra because her breasts are too small.
we need fashion so that we can have something to wear
We need a who, where, when added to your question to answer.
If you need them u need them