Can you make money by opening a teahouse? After 80s, female college students opened teahouses to start businesses.

It is not absolute whether you can make money by opening a teahouse. If you do well, of course you can make money. If you do it in general, it is normal to lose money. So it depends on whether there is a market and what kind of store to open. Also, if you don't make a profit, how long can your funds last? If there is a market, you can make money naturally if you operate well.