I don’t think one needs to be on a fulltime salary to be in a position to give, e.g. among the surveyed population I would expect many/​most of the people who are part-time employed (~12%), self-employed (~11%) and retired (~2%) to be able to do so. The majority of other respondents are students, for which the exceptions I refer to in the post can hold (but I wouldn’t be surprised if most of them would be in a position to give >10% as well).
I don’t think one needs to be on a fulltime salary to be in a position to give, e.g. among the surveyed population I would expect many/​most of the people who are part-time employed (~12%), self-employed (~11%) and retired (~2%) to be able to do so. The majority of other respondents are students, for which the exceptions I refer to in the post can hold (but I wouldn’t be surprised if most of them would be in a position to give >10% as well).
Fair point—it might be ‘sizable minority’ then (say 25-40%) rather than small majority who aren’t in a position to give >10%.