One thing that really worries me is what will happen to the local economy of Kent, arguably the county which will have the biggest impact from Brexit. An obvious contribution to Kent's economy is tourism from continental Europe.
Go to Canterbury, and the coach park is often very busy, with foreign coaches outnumbering British coaches, largely from France, Netherlands, Belgium and even Austria. They are largely for groups of school children visiting the city centre for the Cathedral (and spending money in tat shops, Starbucks and McDonalds, but i'm sure independent places benefit too), but also groups of retirees and just general tourists. There are also a large amount of European students studying at the University of Kent.
The coastal towns of Kent have come a long way in the last decade, recovering from the post-1960s decline. Its amazing how places like Margate have improved in recent years. Foreign tourists are often seen in these places. In Broadstairs, there are often large groups of foreign language students, as there are many language schools there, as well as peoeple who have driven over on a day trip. I went to Broadstairs today, and it was rather quiet, except for the tourists - the majority of people I saw were clearly continental Europeans, and large groups of language students. Other places such as Margate, Folkestone and even Dover also see large amounts of tourists who have clearly come on school trips/day trips/cruise ships, and i'm sure there are other places which see visitors too.
If no-deal Brexit, or even a Brexit with a deal makes it more difficult for foreign tourists to visit, what will happen to the economies of these towns? If it takes longer to get through security at Calais/Dover, why would people bother coming on day trips? Will parents of language students and school children have to pay more for their kids to come to the UK?
Having these visitors to Kent clearly needs to continue, especially when you see foreign tourists outnumbering locals such as my visit to Broadstairs today. I doubt the economy would be as good if there were less foreign tourists.
Being part of the EU makes it easier for Europeans to visit the UK, but Brexit seems to involve adding more bureaucracy, paperwork and cost.
Or will all this be worth it to have less foreigners on "our" soil?