How likely am I to need 30amp and/or water extensions?

Two 25' water hoses, one 25' electrical extension cord, 3 8' sewer hoses.
In 9 years of fulltiming, I've used the extension cord twice that I can remember. Maybe three or four times for the water hose and usually only one or two sections of the sewer hose.
The 50 to 30 amp dogbone? Only use it because I feel the 50 amp is more stable than the 30 amp receptacle.