I mainly chose this route, because of the challenge, and also because I expected my energetic child to produce less photogenic and possible blurry photos at CVS, Walgreens, or wherever. No offense to those folks, but I've had my passport done on location a few times and it always looks like a mug shot. I figured I would end up with better results at home, and I believe my assumption was correct.
Be honest, how was my first attempt at this photography niche?
After roughly a dozen snaps, these two shots ended up as my favorites. The last one was already sent off with the passport application (after receiving the government's required formatting, of course).
Edit: The photo was accepted and the passport sent back completed just after this post was written.