What good reasons?
This is something I've had a bit of an awakening on recently. When the Tories tried to bring in compulsory ID cards we all pushed back against it - Orwell, big brother, etc., and they backed away. That felt like a good reason at the time.
However those cards would've enabled quite a lot of the nonsense that Farage and his ilk talked, especially the stuff about 'open borders' and 'not knowing who's here' and so on, to be challenged effectively.