If we’re in a simulation, why would we be able to speculate about it?

Why would whoever is running the simulation make it so we “evolve” until we find out what a simulation is, and speculate about it? How would we even know what an actual simulation in “the real world” looks like if we’ve never experienced it? And why can we see ourselves creating simulations one day? And when we create simulations, will we make it so the simulated consciousnesses can find out they’re in a simulation, and be able to create their simulation? Would that happen by accident?

Sorry, too many questions. I just can’t wrap my head around this. Just give me your thoughts.