The most comfortable state for middle-aged people is:

Within the system, having made good investments early on, owning three or four properties, having a few million in savings, being a deputy director or senior staff member at the workplace, basically not involved in much work, maintaining good relationships with key leaders, avoiding chaotic drinking parties, just drinking tea, busy with investments and household chores.

or outside the system, having worked in foreign enterprises or large corporations as mid-to-senior management when young, owning three properties, having tens of millions in savings, semi-retired, serving as a consultant for small to medium-sized companies, going in twice a week, earning some pocket money each month, and having a small tea house to play around.

Wife has a part-time job at a public institution.

Children study without worries, attending key high schools, with a guaranteed 211 university admission, and in the future, having classmates who can help arrange jobs for them.