I can attest to the observation about being more open in second language. I'm native Russian speaking English and I find that I can talk e.g. about sex in Engli

I can attest to the observation about being more open in second language. I'm native Russian speaking English and I find that I can talk e.g. about sex in English much easier than in Russian where the right words seem too loaded, obscene, scientific, or euphemistic. But then, I think, the experience oozes back to the native part as well. Maybe speaking more than one language should steer people into being more open and accepting in general? If so, then Dutch people should be among the champions :)