So.... this thread is making me feel really ignorant. It's also making me REALLY want to research Ludwig. I gotta say, he sounds kind of awesome. 
From an US point of view, I live basically in the shadow of Neuschwanstein

and I have to agree. Ludwig WAS kind of awesome, a great promoter of modern technology and architecture and a great lover of the arts. But he was also REALLY lonely and somewhat strange, avoiding human company and dining with Louis XIV and Madame Pompadour. BTW, try and research his untimely death - one of the few unsolved mysteries left over in our times...
His cousin Sissi also spent parts of their childhood quite close to where I live. She was an extraordinary person as well - a bit of a special snowflake, though.
And speaking of family-friendliness - only very few people in Germany would bat an eye in this context, assuming that smaller children don't listen to the tourguide anyway and older ones know what "g
ay" means and don't really care either way.
I still think the tourguide was a bit tired of comments about "Ludwig the g
ay Madman *chortlesnicker*" when he was trying to show a more comprehensive and detailed picture of Ludwig's life and merits. Note: I
don't say the OP was tactless or crude or had no right to ask but perhaps she was the 500th person on this day to do so. Waltraud