Yes indeed if the technology is not used properly there will be negative effects. As you say, the children are already familiar with the outside world is very limited because it is too focused with his/her gadget. That would make children become lazy to socialize physically, due to they are already focused on virtual worlds. It was not only in children but also in adults. In addition it is possible if wrong uses the technology, children will easily access porn sites. It was not good in my opinion because they are not old enough. It may be necessary supervision of a parent in order to restrict the use of technology such as gadgets to children.