I seem to remember that if you have a lap-child listed in your record, you can't do OLCI, either. But the Wiki is silent on the issue. Is this true?

I suppose with a lap-child, you would be in the between-A-and-B boarding group, so losing OLCI isn't such a bad thing. But it does mean a trip to the check-in agent and no going right to the security line since you won't have a boarding pass printed at home, for you or the child. Right?