Buggy's suggestion would require registration/licensing of the guns first, and that's unlikely to happen.
I don't think many people in TV shoot themselves accidentally, while cleaning their gun. If they do, that's their problem.
If they are too feeble to drive, they're also probably too feeble to live in their own home and are likely to be in an assisted living facility where relatives and workers see to it that they don't have guns.
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