Ireland has changed hugely in the past 40 years or more. As a country, we were a net exporter of labour until 40 years ago. Things have changed. Very large families were the norm and people died younger. We also had an economy which struggled. Now, much of that has changed and as society becomes more affluent, families get smaller and people live longer. Those two things mean that we are going to need an awful lot of labour to come from somewhere else, and that is similar across every country in Europe. We particul…