Does the breed die of two-wheelers?

I don’t know if this topic has been dealt with before, but because of the tense discussions about ABS – yes or no – I would like to take it up! At least half of the two-wheelers (pulls through all catechories) have to suffer from a left hip joint damage! My subjective observation when driving German roads: as a two-wheeler reaches speed-limited zones in the inner city area, his left hand immediately speeds up to the left leg. Now my question: Shouldn’t you give up riding two-wheels if you can’t do justice to possible emergencies by driving one-handedly??