I thought people in the NL are more open-minded than in Spain so they would organize these dancing things... on daily basis? ;D
Maybe the thing is indeed in the Latin blood and love for fiestas and any kind of activity that includes being together and talk & dance 😀
They are no longer open-minded, nowadays only opinionated and please don't as the Dutch to dance or you need to be looking for laughs. At least not like in your video, a public get together and just dance because its fun, never seen that happen unless they were drunk on a festivity