No matter but if he get erect it looks worst!

Their scrotums stretch. and boners are more noticeable.

They get stinky trousers.

NOthing happens,however ensure always to put the zipper of pants to avoid a dirty cock show.Regards.

nothing happens, i go commando everyday

nothing happens, i dont wear

underwear

If the boys not be wearing the underwear the boys get their boy part caught in the pants zipper.

It's a sticky mess in the pants.

what happens if the boy doesn't wear underware? To what? The clothes will need to be washed daily for one, and an oder may be detected.

There is a danger, that after taking a leak, there will be a visible little "damp patch" on their jeans. Apart from that, nothing.