> The present world does not need more blue-collars, because machines do their work very well, it needs more scientists and engineers who will invent our future

> The present world does not need more blue-collars, because machines do their work very well, it needs more scientists and engineers who will invent our future. I don't know... plumbing, welder, underwater welding, glass blower for scientific glasses, etc.. are in need iirc.