There are many who think "keeping" a pub is some sort of hobby. In a way it was in times of old when it was the sort of thing retired army and police officers, having a pension to fall back on. Those days are, of course long gone.
The same sort of people express outrage when a tradesman charges them £100 for half a day's work - "my mate's girlfriend's cousin would do it for a couple of pints" - you know the sort of thing. They have no idea of the costs and complexities of running a business. Mind you, many who do try running a business haven't, hence the number which fail within months.