I think that the issue of the free movement of people is essential to the alliance. That is an issue that every country that wants to participate has to tackle in some way. I'm not saying that you have to do this and get rid of that if you want to join, but I'm saying that it is on the table.
There has to be some interest in improving the facilitation of movement of people, clearly, if you want to join a group whose objective and one of the core reasons is goods, services, capital, and people. You can't avoid that issue completely. Any country that wants to join has to consider that issue and has to figure out a way to work with the other members on that matter.