Hi Jostein! Many thanks for your looong comment! :) I was there in the end of May/begining of June. I also heard that that kind of weather is not something usual to experience especially near to Bergen, where I was.
By writing that state "pays" I meant that the government encourages inhabitants to buy them. That is why I used quotation marks :)
I didn't know about the enforced tax, so thank you very much for this information, I really appreciate it! :)
If it comes about the tree it was on one of the roads from Bergen to Arland.
In terms of the cottages - thank you once again, I was so overwhelmed with this information that I took it as if all of the cottages found high in the mountains would be accessible :)
Lastly also - garbage/bins - well in my country you can find it in some places even in the mountains, also when I was aborad I recall that there were such instances. And I absolutely agree with you that we need to respect the nature :)

Thank you once again for your comment, always something new to learn :)