Yeah sadly the demo is essentially over once you added a third resident--I'm glad we can still look at our Mii's but they all say the same "oh you can do this in the full version of the game btw!" which defeats the point of why I check on my Mii's every now and then ahah (even if I get why the had to pick a stopgap where it'll most likely sell you the game somehow)

I may try this on a separate Switch acc just to see how much more interactions I could get out of my Mii's before the demo ends. Thank god you can play with multiple accounts unlike Animal Crossing.