system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why was it such a big deal to be gay in the military?
gpt
Many just didn't want gay soldiers around, and felt they would erode the largely macho culture the military encourages.

Others had more legitimate concerns.  

Soldiers often live in intimately close quarters and engage in activities that involve close physical contact.  Some were uncomfortable with the idea that they person they were showering with might be sexually attracted to them, or use it as an opportunity to take physical liberties.