Thanks for your comment!
I completely agree with you, the transition will not be without any problem. It's clear that jobs will be lost and many people, especially the older ones, will find themselves out of a job market that goes too fast for them. This is the reason why I strongly agree with Bill Gates when he says that we should pay taxes on automation: this would give to the governments the resources necessary to improve the welfare and to sustain those people that are not able to relocate.
As for vocational job training, what you say it's completely true. A country that is doing very well in that is Germany, where college is not the only road for finding a decent job. By sustaining these policies before than other countries in Europe, they have now a very well trained population which is able to cope with new technologies. Italy, for example, does the exact contrary and it's stuck in a incredible situation: while the unemployment level is sky high, especially for young people, it's full of companies that look for qualified manufacturing and can't find it.