Hi,
We're expecting a baby boy in the next few months and one of the few names that we both like is Jacob. DH is a bit concerned though that it is too similar to his name, which is James. He is always called James rather than Jamie/Jay/etc, and we both prefer the full name of Jacob rather than Jake, but I do have a tendency to shorten names so I can't rule out that I'd end up sometimes calling the baby Jake, which I think makes it closer to James.
I can see that the names are maybe too close for siblings, but I don't personally see it as so much of an issue for a parent and child. Would you be put off a name if it was similar to yours or your DP's, and do you think that Jacob and James are too similar?