Every country has advantage and disadvantages, example shanghai cold weather, if u dont have heater u will freeze. also the dry weather affects the skin, and people will have more wrinkles, not like thailand dont need skin toner and conditioner. also shanghai u must have winter clothes or else will freeze. imagine if u drive around and the car breakdown, no one can help you in the freezing snow, if you are in the outskirts. Not sure if this is still happening, however the toilets in china, are very smelly in some areas, and not cleaned properly, the toilets in the Hotels are much cleaner in shanghai, so depends where u stay.
I like your video, nice and clear, thank you for sharing, one thing is good for Thailand, the living cost is very low, that is the main reason that many people choose to retire in Thailand.