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I'd guess the simplest explanation is that pushing a stroller isn't an activity already categorized in one of the standard calories per hour exercise charts tha

• DonHopkins 8y ago
  The other opposing force to including everything is user interface design and usability. You don't want to put too many irrelevant things in the menu or list of activities you can log, goal you can pursue, or questions you must answer. The system can filter out some things that don't apply to you, like only suggesting pram jogging if you have small kids, but then it has to ask if you have small kids to know that, and it might leave out people who help take care of other people's kids. So should it also ask about those personal details? Should it ask for your home's geolocation so it can check if you live on a steep street, before suggesting you pedal your kids around in a Bakfiets, so it doesn't accidentally give you advice that leads to a heart attack? So you have to balance what you put in with how much the system needs to know about you, and how many irrelevant questions and suggestions it's going to throw at you.