In UK, the charity NSPCC have developed a tool called Net Aware to help parents to protect their children and says younger children should be supervised.
Children who use iPads unsupervised can be put at risk

The NSPCC has developed a tool called Net Aware to help parents to protect their children and says younger children should be supervised.
Fuente: Nicky Harley - Telegraph, 1 de june 2017.
Fuente: Nicky Harley - Telegraph, 1 de june 2017.