Using stilts up the full size def not worth the risk. But when lowered they are easy and slim chance of falling.
Even on a low ceiling, how are you supposed to board & skim a ceiling working on your own wearing stilts?
And even if you are spoon fed by a mate, you need to see the state of the concrete floors & cluttered rooms I have to work in.
Boarded out room every time for this kid ... even in a 6x6 bathroom.