Names too close for cousins?

Mo

Our niece is named Jaycie, we are thinking of naming our son Jason. Our niece already uses the nn Jace- I would rather not use a nn. Jason is a family name and since we have had such a hard time finding a name we like I’m stuck on if it would be weird? If it helps, our niece lives out of state from us- we see her twice a year usually so it’s not like it would be a constant struggle?

Lmk what you ladies think

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