This would not be too much for them. As early as possible, we should integrate prayers to their daily activities in every means we could, even reciting a three o’clock prayer in the afternoon or a rosary. A kid who was raised with good values is a trouble-free kid. You could even send them to a christian boarding schools to learn good values as they grow old.
What a lot of parents don’t realize is children attract what you project, so the outcome is very much determined by your behaviour. So if a parent primarily is disrespectful of children guess what? You will have very disrespectful children back.