1. Who cares if it needs a lot of batteries? Batteries aren't that expensive. It'll have a lot less than a car, and people buy cars all the time. The utility of these things will be off the charts and even if they cost more than the average car there will be a big market. People will buy them with financing, like cars. And by doing more things they will reduce the need for other specialized devices like dishwashers, further justifying the cost.
2. Yes, robots will need to be cautious around people, especially children. But if it has a soft cover and compliant joints and good software we should be able to make it safe enough. They will not need to be imposing 7 foot tall giants. I expect they will typically be shorter than the average human. Maybe even child size with built in stilts or other way to reach high things.
3. Extension cord? Swappable auxiliary battery? This seems trivial to solve if it turns out to be a real problem. And if you have two (or borrow your neighbor's) they can help each other out.
2. Yes, robots will need to be cautious around people, especially children. But if it has a soft cover and compliant joints and good software we should be able to make it safe enough. They will not need to be imposing 7 foot tall giants. I expect they will typically be shorter than the average human. Maybe even child size with built in stilts or other way to reach high things.
3. Extension cord? Swappable auxiliary battery? This seems trivial to solve if it turns out to be a real problem. And if you have two (or borrow your neighbor's) they can help each other out.