Possibly, but somehow I doubt it.
As a retired Black Cab driver, I realise that I’m probably skating on very thin ice here, but I’ll take a swing.
As to asking the driver who has he come to pick up, I subscribed to a computerised radio circuit, that had a slew of corporate accounts in The City, investment banks, law firms, insurance companies etc.
A trip offer would appear on my monitor screen, e.g. Company UBS, customer Mr. Bloggs, ext 7308, pick up at Finsbury Ave. destination Canary Wharf.
On arrival at Finsbury Ave. I’d go to reception and say, “Taxi for Mr. Bloggs, ext 7308 please”, then return to my taxi and wait for the client to come out and say, “Are you for Bloggs?”
Very often, in inclement weather, or if someone had been waiting for what they deemed too long, they’d approach the taxi and say, “Who are you waiting for?”, I’d say “Bloggs”, they’d say “that’s me”, and get in.
I’d say, “Where do you want in Canary Wharf?”, they’d say, “Not going there now, take me to Putney.”
Then, Bloggs would emerge to find his taxi had gone, he’d make a call, and a message would come up on my screen, Can you confirm you have correct passenger on board?
Passenger would lie through his teeth and say he was Bloggs, so another taxi would have to be dispatched for the real Bloggs.
Eventually, when asked who we were picking up, we had to politely say, “Tell me your name sir, and if that’s the one on my screen, then that’s okay, I’ll take you.”
So no, it’s not always acceptable to ask the driver who he is picking up.
As for unhelpful or surly drivers, I only use Black Cabs, so as every driver is self employed, if the guy I hailed was surly, who could I report him to, himself?
Only using Black Cabs, that means that I always travel in the back seat, there is nowhere else to sit, I know that out in the boonies they use saloon cars, but in London, the only real taxis are Black Cabs, anything else is a poor imitation, usually driven by an immigrant wannabe, whether its Acme minicabs, or Uber.
AA/RAC? Can’t remember the last time I called them, but don’t recall any intransigence.
I tip the same amount that I’d like, (NEVER EXPECTED) when I was the one hopefully getting the tip, £4.60-£4.80, give him a fiver, £10, give him £11 or £12, £27.40, give him £30.