everyone else in the country has to fork out for digs.
ASsuming he's a doctor in his first couple years he'll be being forced, pretty much to shift area's and locations while working in different specialities or area's that need the work/have a place available for training and they used to give you a place in the housing they have. Though afaik for several years they've been forcing people to pay for it and its not cheap either. Some places are not far off student hall accomadation, tiny, grotty, loud, not hugely private and not at all cheap based on how big they are.
To a certain degree, you don't make a huge amount anymore in the first couple years and its very hard to get your own place when you might not even be staying in a single area for more than 6 months and sometimes a lot less so with moving to a new place at shortish notice, finding a place and getting a contract thats longer than how long you'll actually be there they do get screwed somewhat.
But thats life, doctors are getting it easier than several years ago, and much easier than 10-20 years ago and after a couple years there is decent pay. THe NHS is getting fairly bad and its quite easy to get stuck as a doctor now at a capped salery in a crappy job.
As to the OP, if you're a fireman which it sounds like other people know you are then, meh, what hours are a 20% increase exactly. It depends but a lot of people me included understand what they do is dangerous but they aren't out on a call all the time and when not theres a lot of waiting. If its an extra shift a week, or an extra hour a shift and 90% of that is sitting waiting for a call, it will be hard to complain IMHO. Everyone wants to be paid more for what they do, but thats life.
With firemen, I appreciate what they do is dangerous but at the end of the day you never had to go and work as a fireman and frankly if you aren't fully aware of just how dangerous it is before you start then thats your fault rather than anyone elses. plenty, i mean plenty of people are paid less well than firemen and have to deal with danger. Personally I find it irritating that people choose to work as a fireman then after they start working complain the money isn't enough and also say they should be paid more because its dangerous like its a surprise after they get into the job.