… today it’s “Safer Internet Day” (at least in the UK). While I haven’t had time to really look at everything, the UK Safer Internet Centre has a wealth of resources, aimed at those from 3 upwards – including their parents and carers – here’s just one of them.
Safer Internet Day 2016: Red and Murphy talk to Smartie about helping your friends online from UK Safer Internet Centre on Vimeo.
[Not quite sure that a 3 year old could message someone, but perhaps the video is aimed at those who can write, and good to see Vimeo, given how many primary schools block YouTube etc … ]