I don't understand your question here. You cannot collect welfare for adult children. They are independent from their parents once they are an adult - a completely separate entity and responsible for their own lives.
But the 18 year old could still live under the parents welfare paid for roof for free.
Forget the seperate food preparation and rent paid - that would be ridiculously easy to fake. Just put a hot plate in your bedroom and give the parents cash each month - which the parents turn around and give back under the table.
Plus, you are going to have to have government representatives physically monitor each family...which will cost tens of millions of dollars....at least.
Again, I told you that I'm talking about long-term birth control. That 14-year-old would be considered a separate entity from her parents as well. If you are that age and you become a parent, you are eligible to collect welfare only if you have documentation that you buy and prepare your own food separately from your parents and that you pay some kind of room and board or rent to stay with them. Otherwise, the under-aged mother and her child would be considered part of the parent's family. That is how it works now, and I see no reason for that to change.
I never said it was a "perfect" plan. I said it would help out.
So, then a teenaged girl could have several children before she was 18 and still de classified as a dependent of her parents - all a okay according to the state.
And then this young mother could give up custody of her children to her parents and they could raise them at state cost as dependents. Plus, the young mother could live for free at home and if she gets a cheap job to pay for food/clothing/bus pass - she could have her children raised by the state - all without ever having to be sterilized.
Plus, the government will have to pay for tens of millions of sterilizations for eligible men and women (these people are broke - they cannot afford it). Which could run into 10's of billions of dollars.
And, every lower class person who wants to be sterilized (like a man wanting a vasectomy) can now get it done for free from the governemnt - even if they have zero intention of applying for welfare (as long as they qualify for welfare). Again, more billions of dollars.
And these are just loopholes I have thought off of the top of my head.
Surely the masses will think of dozens more.
I guarantee you, it will end up costing the government more money then it pays now.
Plus, this sterilization program will incite gigantic resentment amongst the poor - who will gladly band together to do whatever they have to to fleece the system.
The more government tries to clamp down on people - the more it unites the people in a common cause against the government.
Finally, over 50% of Americans receive some kind of government assistance. There are over 44 million on food stamps alone.
There is NO WAY this will ever pass Congress. And there is no chance a POTUS would support it - he/she's party would lose the next election for certain.