In fairness to the charities, it does become more difficult for them when the economy is not strong and everyone has less cash to give. A couple of scandals a few years ago, when money was found being diverted into people's bank accounts, did not help public comfidence and generosity.
There are as a result more stringent accounting rules in place, which did not always go down well with the honest local amateur collectors, who now had more paperwork to do, and felt mistrusted by both the charity and the public.
For instance a small charity that I was associated with lost some helpers who could not accept that when a can was opened there should be at least two people present, who should each count the contents separately and sign acknowledging the amount. Someone else used to hold a car boot sale with a notice saying that she shared the proceeds between two charities. When told that the auditors said she must state the proportion that would go to each, and have someone witness the divvying up, she stopped doing the car boot sales completely, saying it was too much red tape and distrust.
So several of the big charities farmed out the nitty-gritty to professionals.