[adrian17]

> It the phrase that feels the most natural to me when speaking to group of people.

Dictionaries seem to agree: https://dictionary.cambridge.org/dictionary/english/guy "used to address a group of people of either sex"

[0x008]

While dictionaries are guidelines as to what is accepted use of a language, these accepted uses and dictionaries are no laws. A dictionary is only a snapshot of the rules which society agreed upon in the past and thus will certainly be changed in future.

[hackeraccount]

So we're deciding right now that "guys" is a group of men? Why are we deciding to have the least inclusive possible meaning?

[JacobSuperslav]

Because I don't know about you, the word guy sounds masculine to me.