If you wait 10 days to stake and I only wait 1 day to stake (and we have the same number of coins) your stake will be 10 times the size. It is fair. You get paid for however long you have waited. Everyone will end up with 100% staje over a period of one year.
It all equals out in the end. I like a bigger stake myself, sauteed onions, and some peppercorn sauce.