most people over the age of 50 will not accept you, if you are different to their perceived norm
Yes, people take over the norms they learned from their social environment when they were young and most stop adapting them to social progress that happened when they are older.
Since the GDR heavily imposed the traditional family to push birth rates (e.g. you basically had to get married to get a flat), even homosexuality is a strange and foreign concept to many people who grew up in this environment of enforced cultural conformism.
It will be interesting to see how this changes when newer generations get old, since society is much more pluralist nowadays.