As a CBT instructor its a proper nightmare with 50cc mopeds out on the road, always having to look at the student and at all the assholes who are trying to force their way past you or pulling out at the last minute and it is ll to do with that L plate.
On Sunday one of my students stalled pulling away at the lights and we as instructors (at my school) always ride slightly to the left of the student behind them so that they can see out their mirrors and not just see a mirror full of intimidating instructor, now i had two students in front of me and a proper arrogant impatient female driver behind me, your never guess what she done.....yep you guessed it she forced her way past me (just missed my bars) then forced past the first student, now by this time the front student was just about to pull away which is when i told him to stop which thankfully he did and she just managed to get past him. She only then pulled over to the side of the road to let her mate out the car at their house!!!
As said above you can only do your A1 test to remove them but then you need to pay for every other test in order to get the full A category, once you get the A1 use the time wisely to get very good road sense and learn how to spot these assholes in a good timely manner, keep looking up at the vanishing point to give you a reasonable length of time to spot anything that will make you slow down or move the bike left or right.