Taxi could be owned and run by a family memeber or friend giving them a ift for free.
It is alway unwise to make sweeping conclusions from something even as straightforward as a client at a food bank using a taxi unless you are fully conversant with every detail of the circumstances surrounding the use of the taxi
I remember a Salvation Army officer who had had serious heart surgery and was banned from carrying anything heavy saying how he felt walking across Waterloo station in the rush hour on his way to a cnvalescent home with his wife, who was much smaller than him, walking beside him carrying both their suitcases. To all intents and purposes, he looked fit and well, nobody could tell by looking at him that he was recovering from major surgery. He just had to accept the shocked looks and thoughts of those who saw this strapping SA officer in uniform letting his wife, also uniformed carry the suit cases.