The most important thing is money. If everyone can afford so many dormitory fees, it is not impossible to implement single dormitory. But all of us basically only pay about 500~ 1000 dormitory, so how can we live in a single dormitory?

To know how expensive this is, a school must have at least 20 thousand students. Suppose each student needs 8 square meters of space to be a dormitory, and at this time 1.6 million square meters of dormitory is needed.

What a large quantity this is. I'm afraid the total construction area of an ordinary school is not so big. What's more, the cost of building all these places into dormitories is too high to advance.

A very good school can have two people, and a slightly ordinary school can also have four people. If it is a school, there may be six people and eight people. If the school is too crowded, there may be a dormitory for 10 people, so we want a single room. It's really daydreaming.

Unless we rent our own house, and in this respect, if the school does not impose restrictions, we can completely achieve a single room. But if you rent a house near the school, if the school is in the suburbs, the house price will not be too high and the rent will be relatively low. Basically, three or five hundred a month is enough. But if it's in a busy downtown area, I'm afraid 1000 can't rent a good house either.

For most ordinary college students, their living expenses are only about 1000~ 1500, so it is very difficult to pay rent at this time. If there is no other source of income, basically even the living expenses are barely enough, let alone renting a house.

Therefore, due to various factors, most of us can only be forced to stay in a four-person environment, which is also the standard of most undergraduate colleges. For colleges and universities, eight people are very common, and there may be 10 and 12 people in the next junior high school grade one or two.