Why not? I don't know about you, but if I had access to technology capable of running these incredible simulations, then one of the first things I would try is creating a simulation similar to our world. In fact, that's very much a core part of the simulation theory. We create a simulation that is similar to our world, that contains life similar to us. Because it is similar to us, these simulated beings, curious types they are, will advance to the point where they create their own simulation, and so on. For the simulation theory to work, this repeating series of simulations would all have to be somewhat similar to each other, otherwise the series would simply end because you'd have a simulation that doesn't contain intelligent and curious life, which won't lead to another simulation.