Agreed. (apart form the heat part).
We (the west) suffer from the can opener con ( I like to call it).

I have a can opener - no moving parts - and will last a lifetime - if i don't lose it. Guess what?- it open cans perfectly well ( and a bottle open the other end. happy days!).
This cost me a dollar - 8 years ago.

Now look at the size of the market for can openers, (different types ect.). And the prices. And 'we' fall for it.

If we do this with can openers, ( a thing to open a can ffs!) we have gone a little bit nuts, and need a reset, in my humble opinion.

The ain't nothing wrong if you are opening 30 cans a day to upgrade your can opener, but we have lost the common sense perspective.

At a huge detriment to our future generations.