Most subjectively "useless" objects are used as a store of value. Only 7/8% of gold is used in the manufacturing industry, the rest is sitting there with no active purpose other than existing. Same goes for collectibles (you can't eat or live in a baseball card or a valuable artwork).
Also the "live in" is a big misconception. Real estate doesn't increase in value. What does is the land on top of which it sits. A house depreciates over time exactly like a car (prefabs on rented land are a great example of that).
The only question that matters is: is Bitcoin better than commodity X? Where X can be gold, silver, oil or whatever else. And if the answer is yes there's no reason to believe it wouldn't take over X in terms of market capitalization (and, therefore, value).
Also the "live in" is a big misconception. Real estate doesn't increase in value. What does is the land on top of which it sits. A house depreciates over time exactly like a car (prefabs on rented land are a great example of that).
The only question that matters is: is Bitcoin better than commodity X? Where X can be gold, silver, oil or whatever else. And if the answer is yes there's no reason to believe it wouldn't take over X in terms of market capitalization (and, therefore, value).