93% premine to anyone born today.
Why do you think it's negative for Bitcoin? Only minority of bitcoiners mine. In 2012, when I first heard about "the money of the future", I knew that I could mine some coins myself. But mining seemed to me very complicated, and required investments. So I preferred to buy some coins, not to mine them. I still consider that decision as a good one. And it doesn't matter which rate of coins is already mined: 40% or 93%.
100% premine to anyone born in 2140.
Why do you think it's negative for Bitcoin? If all the coins are already mined, it means that there is no inflation in Bitcoin anymore. A perfect asset for savings, isn't it?