Um....... no, this is not a good thing.
Does anyone know what a leather collar means in the BDSM community? Hmmmmm? Anyone been involved in that?
It means you're a sexual slave. As in, an extreme submissive who will do whatever their master asks. This is NOT something you want to dress a two-year old child in. Unless you're trying to say that your two year old daughter is a sexual slave. Which the very thought of makes me want to vomit.
You know, far be it for me to pass judgement on what adults do in their own house. But to dress kids up in BDSM gear and walk around a fetish fair?
No. That is wrong, plain and simple.