Episiotomy v Natural Tearing

So for you veteran moms out there, I was wondering how you felt about episiotomies? Do you feel like they're ever necessary or that it's better to let your body rip naturally? The idea of being cut prematurely is really bothering me, and I can't help but think that if I needed the... extra space (?) down there my body would naturally provide that for me (tearing). Do you feel like it's ever better to get the episiotomy? For example, do you think that in some cases it would benefit as to having a nasty tear that wasn't a clean line? Am I over thinking this? Lol!