I don't care if neighbours see me in my underwear (or less)

I live downtown a large city with pretty close neighbours, and I genuinely don't think twice about walking around my place in underwear or even naked with the blinds open. Not in an exhibitionist way, but in a "I'm home, and this is comfortable" way.

The funny part is a couple new neighbours just moved in across from me with a direct view into my living room, and they're constantly hanging out on their balcony. I'm pretty sure they've seen everything by now.

Curious if other guys are the same? Is this a city living thing? A gay thing? A me thing? Would love to hear your stories.