I think your ideas are too non-practical/specialized/advanced/low-level for your stated goal of 'digital literacy". They read more like college intro/followup course material and are too esoteric to be readily absorbed, esp by generic teenagers, even if they’ve self-selected to be “lightly interested”.

In recreational climbing, skin calluses and surface abrasion aren’t usually much of a concern compared to tendon health. Skin heals light damage quite easily.

However, it’s not uncommon for a new (or experienced) climber to develop their muscles beyond what their own tendons can take. Since it takes tendons so long to strengthen, it’s common to need managing the risk of finger pulley tendon injuries in climbing.

Also, I do not know how these nuances apply in your context of your medical condition.

In a sense, money represents all the future goods and services it can buy, and those goods and services ultimately resolve down to someone’s time and effort. Money was conceived as a formalization of IOU’s, after all.

So it’s similar to asking whether there’s a limit to how much time and effort from (i.e. influence over) others one would want.

Must be proprietary, bc TOTP shouldn’t be blocked by age of the device