Why should i get married here with a imperfect woman, when i can just wait for heaven and marry a perfect one?

Like i dont understand why people get married here and settle for a woman or man that doesnt have ALL that they want in a person and settle, when they can wait and IF they go to heaven they can marry a perfect person and have kids....why is everyone acting like u must marry anyone thats ok. i understand about marriage and half ur dean, but besides that, like why???