Curiously my Kinect fundamentally failed to detect my 2 year old son at all, to the point that it would still point to the location on the sofa where I was sitting (after hiding behind it so only he was in the field of view) rather than detect him! Maybe it doesn't like the location I've got it at.
Sometimes complex technologies like this seem to perform oddly in "unexpected" situations like what you describe. A Xbox Live friend told me that Kinect once signed him in when it was actually his dog facing the camera, so you get the idea.
I like how it always recognise me. Sometimes I power on the console and I look around while it launches to the OS, at times I am scratching my ear inadvertently and situations like that when I completely distracted, yet the console signs me in because it recognises me pretty well.
Ryan McCaffery has created an Xbox One site for feedback. Major Nelson has noticed it & has forwarded to the powers that be. Looks like a good place to corral all the issues with the system. Hopefully Microsoft listens like they say they are.
http://xboxfeedback.com/
BTW it has its own comments section that allows you to post comments via Disqus. Facebook, Twitter or Google. If you're a Reddit user you can post to a thread there...
http://www.reddit.com/r/xboxone/comments/1rcsrc/xbox_feedback_my_unofficial_list_of_issues_and/
Tommy McClain
I think the community thing is something where Xbox One shines, so I know they are going to listen to the people.
I am follower of the Killer Instinct guy, Maximilliam, the activity feed of your friends is well made and organised, and they are building a hell of an ecosystem around it.
I added like 40 friends in the last few days, which might sound pretty normal, but on the Xbox 360 I was very selective because there wasn't much to share with friends.
The situation is different with the Xbox One. You can have a list for your favourite friend/s, and the more friends you have the more Drivatars you can potentially race against in Forza 5, opponents in Powerstar Golf and things like that in many other games.
I am amazed at the work behind the infrastructure of the console.
The Xbox One is a much, much better console than it was credited for, but there has been some mistakes on Microsoft's part..., shady interests, and I can't say I enjoy reading certain journalists and gaming sites in the video gaming industry nowadays, too.
People that felt unsure are now thrilled with the console once they put their hands on it.
http://www.theinquirer.net/inquirer/review/2309235/xbox-one-review