Above user might not find it to be a hassle at all. I turn GPS off whenever I notice it on as well, but it's pretty far down the list of ux concerns when using my phone. Sometimes an app reminds me I need to turn it on before continuing, but that's all handled smoothly in-app these days. (unlike sibling comment my phone has gps toggle in the slide down menu)

In my case it's a longstanding habit from when I was told that GPS could drain battery faster :p (maybe it still? does, I don't know)