2. Nature has tested many different form factors and the human form dominated the others.
It's like skipping making kitchen blenders and vacuum cleaners and instead building a robot that will be mixing stuff manually or using a broom.
Manufacturing, where 90% of the process is generally automated has countless specialized ones. It would not make sense to put generic ones there, because humans really are doing very specific work in manufacturing.
But the generic robot is the endgame. I think Musk tries to achieve the endgame, probably too soon. FSD, interplanetary travel, etc
It's not like I can't think of a single use, I do: an army. Sure wheels get you faster, but when you have an army, them being able to climb or move along larger steps is an advantage. A long stick (arm) is ideal for mounting and directing a weapon to fire missiles. Then you only need a observation unit, ideally at the top and maybe some communication tools also at the top, et voila you have a "head". The human form is ideal for fighting and that is what it evolved for (hunting). But I don't know if we want that wannabe dictators aka. billionaires to have a large army, which also doesn't even have moral, so they could revolt. They sure would like that.
Birds are much better at being dinner. The most "successful" bird by a very wide margin is the broiler chicken.
Of the individual animals that are the same scale as humans, the vast majority exist either to be eaten by humans, serve humans, or be cute for humans.
The most successful wild animals of a similar size to humans have 10s of millions of individuals, not billions. Seals for example thrive by existing in places that humans are not suited for.
For instance: a quadruped base can be statically stable in case of power loss - a biped really can't.
