Fair point with the key generation.

With the single location, I wouldn't be comfy when I need to be.

Think about being in 1900 in Europe and trying to find a single secure location where your kids would always be able to access it in time of need for just a next 100 years...

Probably more than 95% of land mass or fakilies had some heavy access restrictions put place on them at least for some period during that time. Usually in the most crucial period.