Trains and Planes and Automobiles

I must admit to being less than enthusiastic about the UK's attempts to boost travel into the country by plane, ferry or train, by cutting the time required for self-isolation following taking a test (https://www.theguardian.com/world/2020/nov/24/test-to-release-cut-england-travel-quarantine-five-days). This reduction to 5 days (from 14) is, apparently, irrespective of the rate of Covid-19 transmission, in the location they are coming from. Travellers will all have to fill out a passenger locator form but I'm wondering how vigorously this will be checked. They can then elect to privately pay between £65-£120 for a test which, if it proves negative, will result in release from quarantine within 5 days. This seems like a 'get out clause' for relatively rich folk or people travelling at their company's expense. It has, naturally, been welcomed by the airlines. A further concern is that the tests are, by no stretch of the imagination, 100% accurate (many of the tests don't register at all, unless the viral load is relatively high). A scheme like this, might be appropriate, once the vaccination programme has started. I think, however, like the earlier unmonitored returns of people from skiing holidays in Northern Italy (January/February, 2020) and the travel to and from 'safe' foreign holiday locations (this summer), speeding quarantine to help travel companies, might well result in further surges in the pandemic. If that is the case, it's precisely at a time when the population of the UK is at its most vulnerable.