There seems to be a lot of anger about this. Quite justifiably. But there's another message here, too. Raw injustice and naked class based coercion isn't just a technique for forcing families apart. It's a way of telling you that your own country has reached the state where it's time to get out if you can.
It also answers a question the Duke Of Wellington is supposed to have asked when he saw his first railway, namely 'how are we going to stop the working classes moving about'. Historically, development isn't just a process of political change or economic growth. It's a means by which people's horizons are widened; first to the next village, then to the town, then the metropolis and then the world. Ability to do this might have been limited by income, but the whole push of society was outward. Now we're back to stopping the poor - in fact, the 2/3 of the working population that earns under £25,000 per year - moving about.