Tent wall houses can be liveable if security isn't an issue, but relying on a fabric roof of that style and low tech installion is not a great plan.
Tent houses used to be a big thing in summer vacation/ beach communities before AC, but we're almost always built with a solid roof structure for worry free weather protection from above. Many of them were subsequently fitted with permanent solid wall I fill panels and are still in use. Picrel is one of them in southern CA, note the truss roof structure that allowed it to be just a roof on posts with no load bearing interior walls. A smaller one or shed roof could use far simpler framing, look at things like the simple pavillions in public parks that let you picnic in the rain and RV parking -style covers for ideas.