Even if you distribute the wealth evenly to everyone on the earth, after a while, some of them will go broke and some of them will become super rich

Even if everyone start the mining at the same time, after a while, some of them will quit mining and some of them will accumulate large amount of coins, especially when bitcoin still worth nothing at the first year (There are many altcoins started later and everyone had a even chance to mine from the beginning, but still most of the people quit because they worth almost nothing in the first year)

I do think that the coin generation speed could reduce 25% per year instead of 50% per year, so that total coin will be 3x the amount of the first 4 years' coin supply and it will give more chance for late adopters