If you don't believe in God...

It works. Design always involves trade offs and constraints. Despite the non-intuitive nature of it, thousands of years later there are 8 billion humans on earth. So I bet He has a good answer for you.

 

He knows gravity works.

Hint: it has nothing to do with our pleasures.

 

So, you don't like the Bureau of Land Management? Hmmm, well to each his own.

 

And that, as explained to me by my gastroenterologist, is why I have to pee upon standing after sleep even when going already just before getting up, well and now at my age, often upon standing period.