No need to duck, @Oldbloke common train of thought for a lot of people in your demographic. It’s just that you don’t know. A lot of people who don’t know, think they know, because they have no use for one. So inherently they express this 'I don’t have use for one, so no need for others ’ opinion, which make the problem worse. If someone doesn’t know, they should ask, rather than assume their’s is the only use case.
Effects a lot of people. For example, every single competitive shooter in Australia. They must train with 10 round magazines, while international shooters train with almost double that capacity. This translates to poor scores through slower timing, wrong muscle memory and ultimately struggling to win due to predetermined arbitrary handicap.
The intent is to minimise the impact of a bad guy, but a bad guys can simply buy a mag legally - which you can do… You’re not allowed to use it, but this is why they are bad guys, ye? Or tape two together or have them on a rig - like @bentaz - chips away at the rights, for no reason.
For example, I don’t see why LRD should allow you to keep your long range very high powered 30-06 rifle with multiple round magazine. I have no use for it when shooting rabbits and foxes, so I don’t agree with your genuine reason to own one, since this is 100% of shooting that you do. After the first shot, animals would scatter, you really don’t need multiple rounds. And the gun is way too powerful for that anyway - ask any hunter. And since you mostly only shoot rabbits and foxes, you should hand it in and replace with something like a shotgun… See how that works? Slowly, little by little, it should be all or nothing to all shooters.
Just because someone doesn’t know, doesn’t mean there is no purpose, best to just ask, rather than make a sweeping statement that are used against us.