All in the interests of defending our borders..
Brexiters conveniently failed to realise that it works both ways and that other EU countries would be far more picky and controlling about letting us in when we became a third country.
I minded of a cartoon I see quite often on social media. Our island surrounded by a fence. Not only do we appear to not want to let people into the UK but we don't want to let our citizens out...
Apart from that, nothing to do with Brexit of course... 🙄