Sons, I apologize for the slow reply. I’ve been traveling quite a bit the last month with spotty internet access. However, I’m back home for the remainder of the summer and will be posting much more regularly.
I deal with these questions to some extent in the lectures on the Industrial Revolution, and there are one or two other threads in this forum that address the topic as well. The short answer is that some people’s living standards dropped when enclosure forced them off the land where they had been living, but this is something separate from the Industrial Revolution. For nearly everyone else, they were already poor when the Industrial Revolution began (because there was little capital accumulated in the society) and gradually saw their conditions improve as the revolution proceeded.