Hi Hive account@breakthrough.
It's just my personal opinion, of course. But I think no smartphone/tablet should be given to any child as long as it possible. There are 2 main reasons for that:

1. This is pretty harmful for their health. Especially for posture and for sight.
   Lack of movement is not so good as well. Maybe it is better to give them run around and play with each other.
2. Sensitive content. We don't want our kid to develop on negative thoughts or copying negative deeds, right?