Ancient Levant, including ancient Israel, was obsessed with being hospitable hosts to visitors. This was an important cultural marker left over from when proto-Israelite culture was bedouin and on the fringes of society in the Levant.
This practice had become slightly more hostile during Roman occupation, but Jesus's teachings on the matter were profoundly conservative--instructing his followers to never waiver from their ancient obligations.
The difference is that nobody was paying attention to CS1 until after a couple patches were released and the game picked up momentum as it was improved and more fleshed out.
Yes, but the wearer has it on their chin.
The theoretical effectiveness of masks used in best practice and the actual effectiveness of actual practices are often miles apart.
I'm not anti-mask at all but from a public policy perspective the overall effect was meh.