Is it reasonable for 50 hotels to turn on air conditioning and add 20 yuan one night?

Unreasonable. It is unreasonable to stay in 50 hotels, turn on the air conditioner and add 20 yuan for one night. It is extremely unreasonable to say that some hotels charge extra for air conditioning, which is also a disguised charging method. The hotel's regular air conditioning fee has been included in the accommodation fee. Those with air conditioning will be more expensive, and there is no extra charge for turning on the air conditioner.