If you can only preheat and toggle off remotely that couldn't happen. The preheat could just auto turn off if you don't proceed. They can also play with the ov

If you can only preheat and toggle off remotely that couldn't happen. The preheat could just auto turn off if you don't proceed. They can also play with the oven at home too. You should teach them not to do those things. If for some reason you can't teach them to use your phone responsibly then don't hand off your phone unsupervised. All that being said, plenty of people don't have kids...