Watch this video - https://www.theguardian.com/lifeandstyle/video/2018/may/31/why-forcing-cyclists-to-wear-helmets-will-not-save-lives-video-explainer
The idea is that making helmets compulsory makes cycling less appealing. Cycling has great health benefits and we don't want to discourage it...
I recommend a couple of breweries for decent local beer. De Prael Brouwerij near the red light district is great. You should also head over to Brouwerij het Ij in East (get a tasting selection), but be aware that it closes at 8. If you're in the Jordaan and really like your beers, go to...