I can see the thought process behind "We are making a sort of platformer, but there is no platforming." Then "Just make the chimneys on the roof doors and they need to get up to enter buildings." Funny twist on the theme by making the hero dress as other NPCs to service NPCs.
The game broke on me after the first son failed me. Consider making the next build a webGL so you don't have to download and unpack files. Maybe a volume slider, and an exit hotkey?
Neat game with well thought out design that would be interesting with a bit more polish. Great job on this for only 48 hours!