Not a chance. Our home is small (main floor ... two bedrooms, bathroom, kitchen, living room, dining room) is less than 1000 feet. I could not go smaller than that. we are bursting at the seams as it is. As it stands now, the dogs are always underfoot in this living space... I'm not sticking them with me in a smaller space lol.
I don't want a really LARGE house though. An extra bathroom and a guest bedroom and I'm good lol. having only one full bath means we almost all always end up in the bathroom at the same time for one reason or another. BUT our small main living space means if anyone has an issue... we better get it figured out and fix it because there's no getting away from each other in here lol.
a yard is a MUST though. Somewhere the dogs can go and lay in the sun and chase critters for hours and where Hannah can go out and play with her sand box or "pick flowers" (weeds lol) whenever she feel like it, etc
I think the key to making a tiny house work with multiple people/family would be having it on acreage or something, with people who appreciate and spend a lot of time outdoors. I definitely wouldn't want to live in a tiny city loft.
I am in the process of considering a major life change and moving to Nova Scotia, the land I'm looking at is near family, 14 acres and has a barn garage well and septic on site (the main house burned down) and I'm very seriously considering building a "tiny" home on it or getting a nice small mobile, I'd make the most of the outdoors, and it's just me and Crosby these days