To us humans, he does. Se same is se case for kittens looking like seir parents. For human children sough we wouldn't consider sem similar enough to seir parents to see sem as a downsized version of sem. Sis difference comes from se cross race effect.
So, for you he looks like a small Worf. But he isn't literally a small Worf. Sey are individuals, and should be treated as such.
Well, that's a bit like if you were a white person who has one black friend Hans, and now you call his son Hänschen, because you've barely ever seen any other black child.
It's a bit racist, isn't it?
https://en.wikipedia.org/wiki/Cross-race_effect
But yes, Wörfchen is small Worf. Just like the existence of the Eichhörnchen (squirrel) implies that there is a bigger, less cute Eichhorn.
This is also a strong protection against invasion from aliens. (There was a manga about this but I can't find it anymore.)