I read somewhere that the only reason they're closing some shops is because of their location near schools. Basically, they don't want coffee shops to be near school areas.
If I find the article I'll edit this and post it..
Found it..
http://www.dutchamsterdam.nl/548-ams...ng-coffeeshops
"In doing so, Amsterdam mayor Job Cohen “reluctantly” follows up a federal government directive to establish ‘distance criteria‘ between schools and coffeeshops"