At least some of which is for reasons that, properly, wouldn't fly in the US. They hire young, attractive, college-educated women who are enjoying flying the world for a few years before they settle down and get married. And who are not expected to stay on once they've enjoyed those few years.
Look, I don't blame the front-line workers for any of this. This is almost all management's fault. Look at Southwest. Their attendants are better trained, more motivated, and are happier.
Better work environment and management are important, but they're paid 25% more than other airlines. SW will attract better talent and retain them. I'm sure other airlines wouldn't mind having SW style employees. But their management is not willing to pay for it.
When I was waiting at impeccably maintained Osaka Kansai airport, I saw a flight attendant pickup small gum wrapper on floor that somebody else left behind. It's completely different mentality.
But what I hate flying about isn't the food or CA service.
It's flying into and out of JFK. Everyone working there is f'king miserable. They treat people like live stocks. And their customs and immigration are incredibly inefficiently run.