why the royal family should go?

they say that the royal family has no power and they are just a symbol but step back a bit a few years ago when there was massive flooding in Cornwall of which Prince Charles and family owns so he was responsible for the maintenance of the land and water ways to see that they are maintained and waterways flow freely so as to avoid flooding which has shown not to have been done not only has this not been done but he then puts the burden of work and the clearing up of the flood onto the tax payer so why do we need the Royal family . Any can sit on their arse and wave and for 82 million a year They can even include a smile its called taking the piss