Jim Carroll wrote: Leaving Europe,as things stand, is comparable to a had-done-by teenager declaring they are leaving home
As many of them end up on the streets, there's a valuable lesson to le learned there.

More merriment! To extend your analogy the hard done by teenagers are the second largest financial contributor in a household of twenty seven. Something like 87% of UK businesses do NOT trade with the EU. They will keep on trading whatever happens.