I feel like maybe it's a cultural thing. When people ask me, I try saying "too much", but they usually press me on it, and then I say, well he was adopted, generally yorkies in this area cost $xxx.
Somewhat off topic... I met a hispanic couple in the park with a larger yorkie. He of course wanted to play with Thor and of course Thor wanted nothing to do with him. The lady approached me and asked something about Thor. I couldn't make out what she was saying, but I finally realized that she was talking about her dog being "excited", and "x-teh-kels". I'm like, okay, this weird lady is asking me about Thor's testicles. She must want to know if he's neutered. So I said yes, he is.
Somehow this didn't end the conversation, and she kept picking up her dog and showing me his "area", which was not something I really wanted to discuss with her. Then it hit me! She was talking about these ball-shaped glands that appear around a male dog's penis sometimes.
It was kind of funny, because I saw them on Thor once and freaked out - I thought his testicles had somehow migrated to his stomach. I even started a thread about it on YT. I would NEVER have known about these extra glands that yes, show up on male dogs when they are excited - like, happy excited, not hey-sexy-lady excited. So I said, YES, I know what you're talking about, they're not testicles, and I picked up Thor and showed her HIS area!
I heard her go back to her husband and tell him that "it" was normal. I felt like I had done my good deed for the day.