Crazy idea time: since the problem with the demand end is the difficulty of telling the difference between stolen property and legitimate secondhand sales, what

Crazy idea time: since the problem with the demand end is the difficulty of telling the difference between stolen property and legitimate secondhand sales, what would happen if all sales of secondhand bikes were banned? Would the reduction in theft be worth the loss of end-of-life revenue plus slight erosion of liberty? Not a rhetorical question, I don't know the answer.