As aLays, the status quo is "keep on keepin' on," while a change, especially a change of any magnitude, is fraught with future unknowns. Is that a reason to suggest the status quo? I believe not.
Sovereignty either is or is not. The whole "United States of Europe" wet dream is just that. It has created economic wealth for some, while creating a series of have and have not COUNTRIES. That cannot be a recipe for long term success. Britain has always only been a toe-in-the-water European economy, and keeping sterling vice the Euro was a simple easy indicator of Britain's reluctance. It was always just a marriage of convenience, but it is no longer convenience to prop up bankrupt European countries, play second fiddle to Continental politics and watch our billions being flushed down the Central European toilet.
The English Channel protected England from most European invaders for millennia. The free movement of people and monies made that 22 mile stretch of water irrelevant. Hopefully, in the near future, it will once again become a border worth defending against all comers.