People don't value the measures put into protect them.
Bad things only happen to other people.
Usually poor people or vulnerable people.
Hence why regulations are in place.
Why is it that the 1st Class Passengers survived much more on the Titanic than the ones in 3rd Class?
We should not profit (and by that I include by paying lower fares) at the expense of others who are put at risk or suffer.
Vulnerable groups should not be forced to pay extra for their safety. It should be a collective responsibility. Nor should it be a race to the bottom in safety standards, where vetted cabs are only for the rich.
Or can you give me a good reason, why the owners of cab firms shouldn't do all they can to ensure the safety of all their passengers?
Its basic. Really basic to vet your drivers and take responsibility for your employees and their actions whilst carrying out work which you profit from.
The self employment argument hasn't held up in the British courts. It was thrown out. Which is a great victory for everyone, but people who seek to exploit workers.