Why do small house churches never get donations?
It depends on where the donations are coming from.
If it is from the people in the house church (a tithe) its
possible that those in the small house church have not elected
someone who is to look after the funds and they do not take
collections. This may have a lot to do with the lack of external
donations as well. If there is no formal organisation to the house
church, no secretary, and treasurer, or even priest then people who
may be inclinded to dinate mone to a religious cause may feel that
they are unable to donate to the house church because it has no
structre or head and thus they are putting money into an unknown
group.