My son's American University tutoring was correct:
1. If you are going to set up your own business, then try to set it up as a charity. The tax treatment is amazingly generous.
2. Pay yourself a generous salary and expenses and live well out of it.
3. If you don't want to bother with 'set-up costs' then go and work for someone else's charity, preferably the bigger the better. All the awkward questions will hav ealready been asked and the answers dealt with satisfactorily.
Lastly,
Most 'chuggers' earn around 50% commission on donations fixed to 'direct debit bank payments'.
'Chugger' (noun)
British informal defintion:
A person who approaches passers-by in the street asking for subscriptions or donations to a particular charity:
As in "when you have chuggers outside your shop, people just cross the road"
How much do chuggers cost?