As I posted earlier in this thread, a lot of nonsense is spoken about what will and will not happen after Brexit.

Jim posted "Freedom of movement will end immediately after Brexit is declared
Patel the main instigator - devastating for those living in Northern Ireland"

As things stand and as indeed they stood before we joined the EU, movement between the UK and Ireland is governed by Common Travel Area agreement and, as of today, there has been no mentioned of that changing after Brexit.