Most do not. Most simply have unrealistic expectations and don’t realize they get less attractive as they age. Just like in the west.
Everyone makes choices thoughout life. Some work out and some don’t. Very few people have no regrets.
I simply do not see what all the fuss is about.
What is the alternative? Forcing individuals to do certain things? Certainly that has been China’s history ... one that I would not like to see us emulate.
And even when you force people to do things or not do things, the law of unintended consquences rules. Witness the “one child” policy ... which I very much doubt that “leftover women” instituted.