My son sees me in the shower regularly. He's 3.5. Children need to see a human body, there's nothing wrong with it. Making out that certain parts are "bad" or "secret" just causes confusion.
I have a 10 yr old an a 5 yr old an a 19 month. My 10 an 5 r girls but my son is tge 19 month old an he still showers with me. An sometimes takes a bath with his sister. He doesn't even notice a difference. As long as ur not making a big deal out if it then they don't even know.
I have a 2 year old daughter and she's such a daddy's girl she will follow him to the bathroom too! He makes sure she can't see anything and I have no problem with it! They are little they have no idea what privicy is! I say as long as he's covered its fine
Your mom is kind of overdoing this. Your daughter is learning how to use the potty. It has nothing to do with sex at age 1.