My point was not quarantine procedures now or during the lockdown period, in the UK or anywhere else......but in a future unlocked state, where tourism and life will be getting back to normal. A 14 day isolation quarantine is sensible during lockdown, unworkable in a’normal’ aviation reliant tourist industry. So for any country to have such a measure, while everywhere else does not, is never going to happen.
During the lockdown period over the last xyz number of days, there may have been a quarantine periods in HK, SA etc but this was nowhere near a normal, unlocked, get back to work world.