The only reason the EU flag has been reclassified along with the Cross of St George and many other flags, is that it slipped in through the back door like so many of the things to do with the EU.
As for number plates having to carry the EU flag on them, Tony Formosa would be lucky to see half a dozen in a day, as most motorists in the UK prefer not to have anything to do with it, as we do have a choice. The majority would not be seen dead with it on their number plate.
Yes, it's true, we do have to have an EU flag on our driving licence (something else we gave away) but I wonder how many stick a Union Jack over it. I know I do.
We don't need the EU and we certainly don't want it.