A mum influencer in the States has gone viral for saying she will never force her kids to share their toys or snacks with strangers at the park and honestly the argument has some merit. We get into it: brand new scooter at the park, back off. Special prized possession, also back off. But shared spaces, turn taking and swings, different story entirely. Sarah Harris points out that sharing teaches kids how to exist in a society and delayed gratification builds the kind of grit that clocking Sonic the Hedgehog on three lives also builds. An eight year old named Jasmine calls in to say she shares everything except her sandwich. Respectable line to draw.