Well you're not wrong actually. The Forest Service took over fire management for most of the country in the early 1900's (1910 I think?) and did what fire fighters do best - put fires out. Today we understand that just putting the fire out isn't always the best long term course of action though...

I will say that we are seeing hotter and drier fire seasons than before. While this isn't entirely a result of the lack of moisture, it definitely doesn't help.