Why the people from Netherlands has a liberal ideas about sex, drugs, etc?
The Netherlands is a small country which flourished on trade. If you were liberal, you could trade with a country, because you respected their ideas. That made the Dutch open minded. Especially in the 17th century when many protestant people from abroad fled to The Netherlands, the Dutch found out that is was rewarded being so open: many intellectuals fled from their country and contributed to the Dutch thinking. Being banned from their own country for their ideas, they pleaded for a liberal view. A second explanation could be the Dutch country is below the sea and people have to build dikes. People do that together and have to consult and work with each each other. That is why we have so many wind mills: the mills were used to drain the water out of the ‘polder’ and to preserve the dry land. Without cooperation, you could not live in the Netherlands because your land would flow over with water. So people had to listen to each other.