Far from it, but this is in response to a comment which explicitly said "These jobs that are worth less than $15 per hour are going to be the first to be repla

Far from it, but this is in response to a comment which explicitly said "These jobs that are worth less than $15 per hour are going to be the first to be replaced by machines". I don't think they'll necessarily be the first, and in some cases will come well after much more highly compensated positions have all but disappeared. For example, waiting tables is a classic minimum wage job (in fact, in most states in the US, the minimum wage for waiters is actually less than the standard minimum wage because tip income is assumed to make up the difference), and I'm not seeing waiters being replaced in any significant capacity by robots in the near future. And on the other hand, a difficult job like being a machinist is becoming increasingly obsolete. A master machinist will always be able to find high-paying work, but the market for apprentice or journeyman machinists is drying up very rapidly, because a single master machinist can set the template for a hundred CNC mills and lathes, to the point where the pipeline for master machinists is on life support.