Did they shave their legs on the Death Star?

I know this all happened along long time ago in a galaxy far away but why did the guys in the firing room on the Death Star wear helmets? Was there a concern that they might bump their heads on something? The Death Star was still being built. It was technically a construction zone I guess. But how come the Admiral of the fleet didn’t get to wear a helmet. Him and his mates had to wear naff looking cloth caps that made them look like play mobil characters.

Perhaps there’s another reason behind the big black helmets. They look very similar to the ones worn by Olympic indoor cyclists.

Could it be that the team in the firing room were sportsmen who worked on the death star part time, attracted by the flexible hours that allowed them to get out on the track? If so, this raises alarming questions about the standard of the people the dark side were hiring.
Mind you, I can see the thinking behind hiring cyclists. They shave their legs and that would have made slipping into the tight black pants that were standard Death Star Issue, a lot easier. But I wonder… when the little man on the left pushed the button that activated the beam that blew princess Leigh’s planet of Alderon to hell, was he thinking, ‘A thousand voices are about to cry out and then be suddenly silenced, and I’m the man.’ Or was he thinking about shaving a few seconds off his lap time at the velodrome, or, shaving his legs?