Food, shelter, and medical care are absolutely human rights: https://www.un.org/en/universal-declaration-human-rights/
>(1) Everyone has the right to a standard of living adequate for the health and well-being of himself and of his family, including food, clothing, housing and medical care
Or in other words if you have a right to others' labor, then by not working you are violating their human right to yours, and therefore their obligations cease.
I already covered this. Children and the infirm lack the capacity to produce so they owe nothing.
Also do note that nowhere have I argued that the genuinely destitute should starve, even capable adults. But if you have the spare cash to throw away on being a regular at a bar, as in the scenerio at hand, then I have no sympathy.
How do you define "able enough to work"? What if someone has severe mental deficiencies but can still lift and move things? Can you determine with near certainty who is able enough to work and who is malingering?
These are not new problems, but your proposal is worse than the status quo.
/sad sarcasm as some feel this way