Usually I'm not a fan of universal compulsion, but on some safety issues, such as this proposal, I think I could be swayed.
I think the plus's out-weigh the minus's for drivers, as I believe CCTV does deter the scum, as there's nothing more the scum hate than being caught. And should the scum still try it on, at least the driver can take some solace in the fact that the scum will end up in court, hopefully.
Yes that can still happen without universal compulsion, but my experience with this trade is that drivers (in the main) will only dip into their pockets when it's too late. And the chances of getting others to foot the bill, en masse, are slim to say the least.
From a council's point of view I would imagine mandatory CCTV is manna from heaven. How many times must they get complaints that they have no chance of ever getting to the truth? How many times do we hear stories that can never be proved? Like he didn't know where he was going. He charged much more than normal. He didn't look anything like his picture.
And that's just the lower end of complaints. What about he touched me, he tried to kiss me, he made rude remarks?
In my view mandatory CCTV would help the good guys, and help make the bad guys good. And if the punters are going to pay for it, then I would be in favour.