One situation is: a relatively large space (with uncertain bungalows or floors), with only some basic equipment, such as dumbbells of different sizes, four or five barbells (replaceable barbells), one or two chest-expanding equipment and stretching equipment, with several mirrors around, a carpet in the center of the space, and a coach as the owner ... Personally, I think this kind of gym only appears in some small cities or residential areas. Such a gym will not be equipped with a bathroom (it is not excluded that there is a bath hall next to it)
The second situation is: a little better than the above, there are treadmills and bicycles, there are coaches to guide the movements, or teachers to teach the body ... These gyms generally have bathrooms, which may be for members who need to pay fees or membership fees, but it is speculated that the bathrooms should be relatively small (or like bathhouses), and the supply of hot water may be intermittent.
The third situation is that the provincial capital or the first-class city has a brand and professional gym. This kind of gym has good functions, safety and service, but the membership fee is high, or you can experience it first, but then you may be bored to death (because they will call you to join or something) ... but I don't know if it is "ordinary" for you to reach this level.