Environmental question: why are we still using single-use batteries?

In an increasingly environmental and sustainability-focused world, why are we still allowed to buy single-use batteries?

Rechargeable batteries have been around my entire life, but it feels like sales power and consumer-convenience of the Duracell Bunny has dominated.

I know that single-use batteries are solid performers during their single-life, but the amount of waste produced can’t be good!

Single-use batteries are also widely recycled, but I’m convinced that most people just throw them away as they can’t be bothered!… Time for a change – and some law/regulation around the whole lot (although in post-Brexit times this could be a LONG way off).

I only transitioned over to a simple AA / AAA battery charger and batteries last year. Better late than never.