Pro tip to parents out there:
Your kids will want to see other people in those childhood photos, more than they'll want to see 100,000 photos of their own faces. You, when you were younger; their now-gone grandparents; that friend they had for two grades before one of them moved ("OMG I totally forgot about them!"), that kind of thing. You'll get way more than enough photos of your kids, so far as your kids themselves are concerned, without even trying—it's the others you may neglect.
Now, for your own purposes, yeah, you probably want the photos of your kids more than anyone else who might get in the shots—but try to think of them and snap one or two of other people in the room, when you're taking e.g. birthday photos, or pan around from time to time when shooting videos of them. They'll eventually get more enjoyment out of the stuff, if you do.