This is a genuine question, and I apologize in advance if this ever comes across as ableist. Would you still have taken the job knowing that your vision issues

This is a genuine question, and I apologize in advance if this ever comes across as ableist. Would you still have taken the job knowing that your vision issues might (hypothetically) endanger yourself and others in the line of work? This is the question I have been asking since I watched the movie GATTACA. Without spoiling it for anybody who has not seen it, the movie depicts a predicament somewhat similar to your situation. In the end, the hero was able to emerge triumphant and achieve his life goal through plenty of perseverance plus some deception on the side. The film is hailed as seminal critique against ableism and eugenics among other things. However I could never shake the feeling that the story put the hero in a position way above his physical capability and it is very likely going to end in disaster for everyone involved. I really want to agree with the message of the film, but the plot only seems to undermine it. In a more relatable example, is there any justification in revoking drivers license for senior citizens on the basis that they much more likely to cause accidents, whilst knowing that their quality of life will suffer greatly as a result? This question affects me personally in some way and I still have no good answer for it.