Why can't they do drama where there's a crime, which they solve, without the all calamatous personal life that seems to be compulsory these days?

Why can't they go back to the good old days with programmes like Dixon of Dock Green? Good clean police drama and no disfunctional families. I mean George Dixon used to live happily with Andy, his son-in-law, who was a detective. It was all so much simpler then.
Although, wait a minute, I hear Jack Warner has been accused of corruption ...