In an interview with IGN, Jason Jones stated that he enjoys playing Destiny with his 5-year-old son. I know that's it's possible for his son to have a tv, PlayStation or Xbox and the respective internet connection separate from that of Jason's, but I find that somewhat unlikely. The only other possibility possibility can think of is splitscreen. The point at which he says that is a little more than half way down the page. (I'm on a tablet so that may differ.)
-
FYI there are 2 Forums in Bungie.net which'll let you vote for splitscreen. Doing this of my XBOX 360 using 100% flawed internet explorer. can't set a link to either of them. they really need to make I.E. obsolete.