I agree that gov't is relatively good at sending checks (except in some economic circumstances, e.g. when the currency it prints is no more in demand - like in

I agree that gov't is relatively good at sending checks (except in some economic circumstances, e.g. when the currency it prints is no more in demand - like in Venezuela, or late USSR). However it doesn't necessary make a particular welfare program efficient in general. Maybe recipients are poorly determined (which happens more often with larger programs), or sending checks is not the best idea at all.