First: you don't "consume" bitcoin, you spend them. They are not lost, they change hands.

Second: regarding lost bitcoins, you don't need tail emission. You just add more numbers AFTER the decimal point, like milisatoshis do for example.

Problem solved without tail emission.

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The price would need to keep doubling every 4 years with the halving to keep up the security budget. When it doesn't, miners will get into trouble and ASICs would likely become worthless, making 51% attacks more affordable.

I find tail emission a more elegant and worthwhile decision.