At first blush, these restrictions sound terrible to someone in the US. However the more I think about it, I kind of like the concept. You can literally ride a 200 horsepower modified Hayabusa or BMW S1000RR the day you turn 16 and get your license here which is pretty absurd. I used to work at a motorcycle dealership and would see people come in all the time who had never ridden and want a GSXR-1000!
In my loft building I was chatting with a guy the other day who currently has a GSXR-600 and has only ridden it 4x in the 2 years he's had it. The battery is dead again, so he asking me to use a charger. This 600 is his first bike, and he told me that he "needs to move up to a 1,000 because the 600 is just too small for his tall frame". He's about 6' tall and maybe 170 pounds, and there's so much absurdity in his statement I can't imagine the look I gave him. The first thing I said was that there is barely a difference in physical size so it won't be any more comfortable. Then I went on about his experience level and how much more intense a liter bike would be and how he should take the 600 to a race track (I think even the 600 is WAY above his or any beginner's skill level). I even offered to take him with me next weekend when I take my Monster 796 to the track, and he was downright mortified when I told him that my 796 makes substantially less power than his 600! He assumed because it says Ducati and it's bigger than his that it must make at least 130hp. I started to explain it was a 2 valve motor, air cooled, etc. but it didn't matter lol.
Long story short, although I typically hate government intervention like these restrictions, it makes sense in this case, and I'd even support it here in the US. I'm sort of a hypocrite though since I did buy a GSXR-600 myself when I was 16 after a buddy wrecked my Ninja 500 while I was showering and getting ready for a date LOL. I already had 5 years of near daily motorcycle experience though at that point so even though I was young I wasn't exactly a beginner.