What's up with that?

[SharknadoSurvivor]

I'm just wondering why all the shins and his pops have the same sharingan? Or am I tripping? It's really confusing me.
Thoughts?

 

[ANiMUS]

Cloned Sharingan :|

 

[SharknadoSurvivor]

When it comes to shin that makes since but how about bald dude and the baby jubbi?