"Vending machines are more deadly than sharks".
While it's true that (at least for some years) more people are killed by vending machine accidents than shark attacks, your personal risk depends on what you do. If you're a vending machine factory worker who never goes into the ocean, you're far more likely to be killed by a vending machine than a shark. But if you live in a part of the world that doesn't have vending machines and you swim in the ocean every day, the reverse is true.
Assuming this story is true, Linux is going to be a nightmare for that woman. It’s come a long way, but it’s still not as dead simple as it needs to be for non-technical elderly people.