I get your point, but hunting, as a sport, is about as old of a sport as you can get, and for that sport there will always be people who prefer firearms.

At a basic level, firearms really can't be barred from most countries as a blanket rule for everyone that is never allowed to be broken.

Therefore, firearms exist and people have them. That might not be you, or your neighbor, nor anyone you know, but they exist and people have them.

If you are ever in the rare position of being in the presence of one, and/or the situation where you need to handle one for any reason, would this information not be better to know ahead of time, rather than unknown until that moment?

It's like first aid, IMO. I've known first aid for well over two decades, including CPR and everything. I've never needed anything more than how to correctly apply a bandaid. I'm still grateful to know what I know in case I'm ever in a situation that I may need it. That situation might never come, it may never happen. I'd rather know, and never have the need to know, than have the need to know, and not know.

Safety, first aid, anything that keeps people alive, should be universal knowledge. Doesn't matter if it's guns, cars, CPR, bandaids, or forklift safety... It's better to know it, and never need it, than need it, and not know it. Period.