Thank you for your comment and upvote.Like I said in the post, oral habit is a global phenomenon that is observed in about 90% of children. You can image that figure! so that your child is engaging in it is not a surprise to me. However what is most important is the age of the child. If your child is more than 4 years and still engages in active sucking and considering those 3 factors(frequency, duration and intensity), then you may need to seek urgent attention with a Dentist before the deleterious effects of sucking begin to manifest.