You will find most UK based operators simply do not have an HR policy in place to allow remote based work. Also as mentioned before, there are the obvious security issues accessing data from remote.
Speaking out of experience, remote based work seems very attractive compared to the office (no daily commute, you could work in your pj's)
But in reality, it can be a little challenging in the long run, I ended up doing 12+ hours a day working from home (it is hard to switch off as your home office is accessible 24/7)
