I don't think being a taxi driver is high on the list of people's job aspirations. No qualificatins except a driving licence needed! Except in London where 'The Knowledge' is needed for a hackney licence. Anti social hours, no guaranteed income, drunk and rowdy passengers....
If we've been to the theatre we get a cab home, usually Asian drivers, although not all, from the rank. My daughter booked a private hire for me a few weeks ago from her home, it was a local, woman driver. All have been fine so far.