Mr. Feng Shui said that the toilet should be installed facing south (the house is a house facing south), but the Internet said that the toilet should not sit facing south. Why?

Hello, there is a premise that the toilet should not face south. First of all, this is mainly because the previous houses were built by themselves, and there were no floors, such as rural areas, with gates. For example, the house was originally facing south. The toilet shouldn't face the door. Form a fire and water hedge. If it is a commercial house, there is not much taboo about this. After all, the entrance doors of commercial housing are all pressed inside. Maybe it's a south sliding door. It doesn't matter much.