At the moment the public are being offered a inexpensive subsidised way of getting from A to B. That cannot last, investors will eventually need to see a return on investment, they will want the company to go public which means it will have to show a profit increasing costs that will be passed on to the customer, Just like the resent price surge when the trains went on strike.
So why do the knowledge, the obvious reasons are you will be you own boss, keep your own hours with overtime when you need it for bills, outside of making sure your responsibility’s like cab costs and tax are paid, you are free to earn as little or as much as you like based solely on the hours you put in ( sounds fair to me ) you will be regarded as the best in the world, a true icon of London that is recognized worldwide.
If your on the knowledge good luck on your appearances, if just starting out try not to get disheartened, keep at it. If your one of the Taxi drivers trying to do something about the current situation Thank you.