Some countries in the EU seem to be stricter, worse, than others.
To get around it you could , if you have relatives or very good friends in Italy or one of the other countries , buy a bike and have it all registered in their name I have in the past explained this a number of times . . Effectively you are riding their bike, borrowed , You can get insurance in your name.
Another option is to contact HUBB regular poster from Germany ,El Aleman Jens his HU handle . Jens just again posted a few days ago his long standing offer to sell one of his bikes for the summer to any visiting person . He says he will arrange all the ownership details and will buy back at the end of your visit.
You can easily find these posts with a smal HU search , or google "El Aleman Jens" and it will come up.