Re: I like toys but... ton of car?
Thing is, even the idiots understand that half a ton of dangerously driven car is dangerous (even if they might not care). So only dangerous idiots drive dangerously, and not (so much) the well meaning "idiots" (or "people", as they are often known)
But a bright (non-eyesafe) laser is just seen like some sort of "super torch" to a much greater fraction of people than just dangerous idiots. Consequently, even mostly well meaning people might use such a laser in a dangerous manner, simply because they do not understand the danger of lasers - even if they understand the danger of cars, and so try to use cars non-dangerously.
Also, and on a more instinctive level, I (or we) probably tend to imagine that we are mostly going to get better after even a non-trivial car accident (that broken leg will heal....), but blindness is permanent and very likely seems more difficult to live with than (e.g.) a missing foot/leg/arm or whatever. For myself, I just think about how reading will slow to a crawl, and that the benefits of multiple monitors will be utterly unavailable. Are there even screen readers for complicated mathematical equations? What about diagrams and figures?