Others fall down a lot, hesitate, or even give up for a few days. Some children talk before they are 2, others talk very little before they are 3 or so. Some will always be quiet people. Some abilities become clear in one child, but may never be very strong in another. Some children need more consistency, more reassurance, and more confidence and trust-building than others.
Insecurity sometimes can cause a child to withdraw or behave aggressively.
Some children need more active play than others. They need the opportunity to move around, jump, run, and bounce many times throughout the day. Other children need more quiet time or more rest. An environment that is sensitive to this need in children will provide interesting activities as well as a quiet place to get away from the action. Developmental guidelines should be used as a general rule of thumb.