Because China is a communist country and the people are too scared not to do as they're told. That's a bit hyperbolic.
As well as that, does anyone really believe anything the Chinese government says? And that's a bit tinfoil-hat.
PollyIndia, it is madly inconsistent, isn't it? My yoga studio did all that too but we're Tier 3 so no, it must close again. And no classes in my leisure centre – which were in the sports hall with limited numbers, everyone miles apart, you come in and leave again separately –but the sauna and steam room can stay open 