What a shame this thread is about to be derailed. We're never far from mention of Nazis when Germany is mentioned, whatever the context 
Yes, Germany is a complex but generally patriarchal culture. I think the attitudes to prostitution are a signal of that rather than a particularly liberal outlook.
Anyway I digress. I'm in Germany and have just looked into my MP's views on this proposed reform. They are very much against self ID, but in favour of a simplified process which still ensures ongoing professional care for people who suffer gender dysphoria as well as ensuring the veracity of their intentions.
Nevertheless, I've sent an email outlining my concerns regarding the impact on the rights of women and girls if this reform is passed. This aspect of the likely impact of the proposed reform seems to be dismissed here as much as elsewhere, so I think it needs saying loud and clear.