For parents and others handing iOS devices over to kids, it might be wisest to lock down certain features so that children don't stumble across things they shouldn't, or accidentally wreak havoc upon your own device. Here's how.Related StoriesiPad 5 rumor rollup: Bigger screen, autumn release?Which Mac should you buy? Macworld buyers' guide 2013Siggraph 2013: Venom workstation to showcase Intel's next-generation Xeon chips
