Are RV sewer hose supports necessary?

Little surprised at the answers. I have a set and use them just about every time I am at a site with full hookups. I don't use them at a dump station of course, but I find that at a site the port is always a few inches tall and the supports help overcome the hump. Also, without any support, I find the sudden rush of opening the valve really pulls on the connection point of the hose to the RV and keeps the hose from getting a little squirrely. It also keeps the hose off the ground and getting muddy etc. Only takes a minute to set them up and provide the easiest way for a straight shot. To each his own. I just never realized so many people were against them.