I get the same feeling of what chuiiris said before.
糖糖媽, they are talking about the couple (2 people) have income (total) of 5萬.
For example, may be the husband 3萬 and the wife 2萬.
If you find a job with income around 2萬, then your family may be the same as them.
However, you need to employ a bun bun to take care of your kids, you and your husband need to eat outside, need to give more $ to 4 parents, pay 7-8 萬 tax per year..........
Those are all the extra expenses .......
Finally, you may find that the living standard may be the same as you are now ( your husband earn 3萬, and you stay at home)