[bell-cot]

First reaction - Men whose "young adult" days were well back into the last century also want to open jars. If you're willing to use a tool or two, it's still easily done. Maybe the difference is that I got used to using tools, back when those were more-manly things like screwdrivers and socket wrenches?

Second reaction - If you want the food to be safe to eat, but without the extra cost and hassle of jars with separate home-canning-style lids and bands, then being hard to open may be pretty inescapable.

[apothegm]

I suspect a lot of people don’t know that jar opening tools exist beyond the flat pieces of grippy rubber. Amazing what adding a handle and a bit of leverage can do.

[AnimalMuppet]

Heh. When in serious need, break out the giant ChannelLocks, and have someone else hold the jar. A foot of leverage can move most lids...

[fdsajfkldsfklds]

Or just gently dent the edge of the metal lid, enough to break the seal, and it'll open easily.

[rekabis]

> just gently dent the edge of the metal lid, enough to break the seal

I think you need to know about the JarKey (https://www.amazon.ca/dp/B00167Z2UO/). Does the job without any risk of damaging glass or even the jar lid itself.

[bell-cot]

With only one person needed. And denting can usually be done with an old-fashioned can/bottle-opener, to minimize the chance of cracking the glass jar.