That assumes waste reduction is the goal, rather than lead reduction. With toxic, intelligence reducing [1], materials like lead, maybe some extra waste is a perfectly good trade off.
Last i checked tin was not an edible material. There is a small difference between having tin dust, which you cannot contain, and having electronics containing lead which you can colect and store in a warehouse ( asuming you want to address the problem in the first place).
1. https://news.ycombinator.com/item?id=30600539