Question about armor capabilities and other equipment

[bitrunner]

So it was recently pointed out to me that all armor contains a personal comm unit (pg 430 under "Planetary") yet this capability is NOT listed under the Armor section in the Equipment chapter.

Is this just an oversight, and this info on pg 430 is correct? Or was this not factored in when the Armor section (which only lists environmental protection and magnetic boots) was written?

If the former, then why would characters purchase a personal comm unit? why would a character NOT have even the most basic of armor? And if they are put into a situation where they DON'T have armor (captured, etc) then they certainly won't have a separate personal comm unit, unless they somehow smuggle it (such as in a cyberarm compartment)

Since the info on pg 430 is the Setting chapter, is this just flavor text?

[Lane_S]

There should be plenty of times where the players are not wearing armor.

This isn't pathfinder where players show up for a fancy feast at the castle in armor and nobody says anything.

[baggageboy]

second skin, which is the most common starting armor says it can be worn under armor and mentions icons and ambassadors liking it specifically for not being seen. There's no reason to not be in armor pretty much always.