My 21 month old can point out in picture and says mom and dad and if we ask who they are he can say that too.. but he occasionally calls mom and dad or someday even no single time is it normal?

A. That’s okay you should just try and communicate more and more with your child the more you communicate better your child is going to learn over the period do not give any screen time and try to have more of one on one conversation you can do some poems rhymes get some books flashcards try different things