I thought it was a great example. Reading it made me feel guilty, and it made me want to make accommodations for these people in our theoretical babysitting-as-

I thought it was a great example. Reading it made me feel guilty, and it made me want to make accommodations for these people in our theoretical babysitting-as-a-service app. But that doesn't make it any more feasible, possible, or even safe. We're talking about special needs that will be difficult or impossible for a non-targeted service to adequately meet. It would be better for a different service to specialize in this, as our theoretical service is likely woefully ill-equipped to handle the vetting of caregivers for the developmentally disabled (among other problems outside the original problem domain). I'd even be tempted to argue that attempting to address these problems simply for the sake of soothing guilt and/or avoiding lawsuits would be immoral itself. Whether or not there should be legislation to cover issues like this is another discussion. (Maybe there should be! If AirBnB manages to kill off hotels in a few spots it would make for some very interesting discussion.) But I don't think this theoretical babysitting app is a good candidate to be targeted by such legislation, and I think it's a little silly to damn this example... There's other help and services out there specifically for the developmentally disabled, and nobody expects every babysitter or daycare to be able to handle the developmentally disabled either. Calm down.