My MiL has a habit of calling people (especially her kids) by nicknames...babs etc. Her younger son of about 13 still calls my DH by the nickname he picked up while trying to pronounce his name as a baby. It irritates me soooo much. While she was over tonight..I was pointing out everyone in the room to my DS 16 months...by name. MiL..starts saying...babs...babs....instead of the persons name! I correct her & say he will not use nicknames but actual names! My DH doesn't see the harm in it!! AIBU to want to teach my son the right way??