One would presume that if the campsite is open again this year, then the relevant licences have been aplied for and the usual facilities provided. But if the field is owned by a private owner (i.e., not the council), then surely it's the owners' responsibility.

As for the question of stewards perks.... well if the only reason you 'volunteer' is to get yourself a cheap/free ticket, then you need to go back and read the dictionary again. Most festivals could not happen if there weren't an army of volunteers to help. If there are not enough stewards for a site, then the organisers will have to charge for a security team 24/7... imagine what that would do for local relationships and the prices!

I've never stewarded Sidmouth, but I do steward other festivals and enjoy the work I do (standing in a field telling people where to go), there are others who do so much more and enjoy their work too. There are those who volunteer, turn up to get their tickets and are never seen on duty. Those volunteers get refused the following year if they apply. But for every one of those, there are two or more who do shifts over and above their timetabled rotas, do the crap jobs no-one else wants to do and some who never manage to see a single concert or arena show because they are too busy making sure everyone else there has a safe and happy time.

LTS