I'm not saying its bad to be short. And there is actually proof to humans growing taller and you actually said it yourself. Doorways. Very old houses still exist in some parts of the world, and their doorways are rather short. Modern people duck through them. And not just doorways. My 12th grade drama teacher took a trip to London during the summer before my senior year. One of the things he did was go to an authentic Shakespear era play house in London on Drury Lane. He loved the play (Shakespear), but was in pain afterwards because of how cramped he was for 3 hours. Because the seats were very small. Not because he was some giant fat person or something, but because people were shorter then and thus needed less leg room, whereas my teacher was over 6 feet tall.
And you can't say "but there are still monkeys" as an anti-evoluton excuse either. Just because there is an evolutionary offshot from one family (in this case, apes) doesn't mean the entire family dissapears. Notice how all apes are different from species to species. Because they all evolved differently. Even though theres a common ancestor, enough of the population goes their seperate way and evolves based on different things. The climate, the enviorment, the food.... Its all a factor. Evolution is adapting to these new things over time. The thing that works survives. The thing that doesn't work dies. Thats why, generally, evolution is very very slow. But some things need to adapt quickly to changes as well. The animals that can't adapt die, but the ones that can live. Thats why there have been several extinction events that have drastically changed the life of this planet. I don't see dinosaurs walking around outside of my house afterall. But, I DO hear birds.
Half Dragon, half human, 100% Fett!