Little children copy everything they see their parents doing. What are you teaching your children about the importance of proper spinal hygiene and cellphones? They are watching you and because they love you they will imitate all that they see you do.
Teach them to be healthy and peaceful by practicing excellent spinal hygiene when on technology. Keeping your head tipped downward or to the side all day is not the posture that you want your children to learn from watching you.
Hold healthy spinal postures for yourself and for those that will mirror you.