Not Op, but another reason why some people might collect rainwater is that the tap water where they live is way to hard. The mineral content is very high and for example most houseplants cannot survive on it on the long-term. My dad also used rainwater for his aquarium fish.
Yes, there are ways to filter it and make it softer, but it’s just way easier to just collect and store some rainwater.
I almost exclusively play single player games or multiplayer games with friends I know in real life. I’ve had some bad experiences with online gaming and they are often way too stressful for my liking.