We can not get to the discussion if we can not imagine a situation where we might be separated from our "10 essentials".

Gear is not just some stuff you bring with you. Gear comprises the tools available to you to survive. When you are in a city, you are surrounded by essential survival resources, so you can be lax about it. This is not so in the wilderness.

If you watch documentaries about, for example, tribes in the Kalahari or New Guinea, you will notice that the men do not go anywhere without their bows/arrows and a few other essential tools. Those are their equivalent of the "ten essentials". They are never without them. The adults don't take a "day hike" assuming they'll get back to camp ok without their tools. Backpackers and day hikers who understand their situation develop similar habits.

Tools aren't optional in the wilderness. They are your teeth and claws. They are extensions of your self that allow you to live. You should no more go off without them than take off your skin and leave it behind.

But, if you read the thread again, you'll see we actually have gotten to a conversation about survival skills that are not entirely about replacing missing or broken gear, and would apply quite well even when you have the ten essentials with you. There's no reason why it couldn't continue.