What would happen if dinosaurs were still here

I don't know if this a scientific question or not but in my opinion if dinosaurs still did exist we would have trouble with all our work we did through the past years and probably some humans would be eaten from time to time all our houses and buildings and monuments would probably be destroyed and just to be funny about this question we humans would probably make a park to go see dinosaurs for money  "Jurassic Park."

Hope this helps