young adults

My 22 & 24 year old have not moved out yet (and can't afford to) and they are not in college but both are working.  They pay for their own car, auto insurance, cell phone, etc. but us as parents, we pay for mortgage, food, electric. Is that considered paying for more than half their living expenses?  I'm not sure we can claim them as dependents, even though they depend on us for shelter, food, and water.