As little to do with school as the costumes at a circus

[Man_From_India]

What is the meaning of this sentence:

To me, the clothes they were wearing in those pictures seemed to have as little to do with school as the costumes at a circus.

Does it mean that the cloths are not usual for either a school-goers or a circus-goers?
But one told me that if some words re to be added at the end it will make it clearer. So he suggested this: "as little to do with school as the costumes at a circus have to do with school"
But it's still not clear.
Does it mean the costumes look more like a circus costume than a school uniform?
But again if I go through this construction: it has as little to do with A as B = it has as little to do with A as it has to do with B. This construction means that it has so little to do with both A and B. I feel it means "the cloths has little to do with both school and circus. Thus it looks little like both school uniform and circus."
Getting confused. Please help.

[Barb_D]

This is very strange. Costumes do belong in a circus. To say they have as "little to do with" something that DOES belong seems to imply that they do belong. But that doesn't seem to be what the person meant.

Maybe you are right and the person meant "Their clothing belonged in a school as much as circus costumes." (Since circus costumes don't belong in a school, these clothes don't either.)