Reply To: Naming a grandchild from a living relative

Naming is ALL minhag, there is no halacha. But the truth is when a minhag has real “legs” in a particular community, it is treated with kovod similar to that of following a real halacha. So one should be respectful of all people’s minhagim that do not conflict with halacha, and not be derisive or condemnatory of them if they differ from one’s own.