I am the flight controller of China Southern Airlines, and I can't give you an accurate answer, but everyone says that China Southern Airlines has a good major and should be well paid. You can learn more from your counselor in this respect, such as employment rate, general employment direction, average salary, etc. This counselor must have everything. Of course, many people apply for this major in state-owned enterprises, and their salary may be two thousand or three thousand. It seems that it can't be compared with those 56,000 units, but you should know the gold content of state-owned enterprises' wages and those messy bonuses, so I suggest you find a psychological counselor to find out. Of course, the most important thing is the individual, to have strength. . .
The second question:
Of course, this major is more promising. This science is just the skin in the skin, it just lays some theoretical foundations. I can only do some very basic work at work. If you want to develop in aviation in the future, you must go to graduate school.
Supplement:
People of China Southern Airlines like the China Southern World Plate in Xici. There must be many seniors who have graduated, are about to graduate, have worked, and are studying and researching. If you ask there, you will definitely get something.