Lemme see....
Max SNAP benefits for a single person are $194/mo. At 20 hrs/week work requirement, that's less than $2.43/hr, about 1/3 of minimum wage.
http://www.fns.usda.gov/snap/how-much-could-i-receive
If the system can create enough desperately poor people it's cheaper than hiring illegals.
Besides the other qualifiers (work programs, volunteer work) others cited I take issue with you math:
It isn't $2.43/hr for 80 hours (20/wk).
It is 160 hours x minimum wage + $194/mo.
So if someone does not want to volunteer or go into a training program and get free food for such the other option is they make at minimum $7.25/hr. 80 hours/mo. of such is gross $580. $580 + SNAP is a lot more than JUST SNAP.
So what is better for the individual? A free handout and $194/mo?
Or $194 + $580 /or/ work training /or/ volunteer work (i.e. contribute back just as society is contributing to them)
"Working" is only bad if you believe work is beneath you, feel entitled, and believe society owes you something.
The situation would be even better in my state as the minimum wage is $9.47/hr and the city is converting to $15/hr. $1,200 gross for a minimum wage part time job + subsidies is better for the individual than handouts. If you want to help people help them do and be something productive.
There are plenty of charities out there to give Charity. The government isn't helping society by taxing citizens to redistribute to members of society who refuse to contribute yet are capable of such. That is their choice, but that also means their choice is not to eat. As the OP noted caveats about dependents and ability to work--as well as a post 3 month unemployment window.
Can you work?
Have you been unemployed more than 3 months?
Have no dependents?
If YES to all three THEN you either need to improve your hirability or get a part time job IF you want aid. I am offended some people find this offensive! As tax payers don't we have a right to set standards for who gets citizen funds?
Really, truly, if individuals want to give to people who refuse to work/improve their life then those individuals should give to such. Using the government as a tool to enable these undesirable character traits is a long term loss. Kindness and compassion sometimes means not enabling.