I use braid for two applications. When jigging for Stripers in 25 -80 FOW the braid has much less stretch. I use 20# braid with 14# hydrocarbon leader.
My 2 nd use is fishing in my friends stump filled pond. I discovered I can cast light jigs and plugs much further using 6# highvis Fireline with 2 ft 4# fluro leader. My stump survival rate is much higher and the 3-6# occasional bass comes to the net more often.
If I'm just crappie or bream fishing with jigs, minnows or worms plain old 4# mono is fine with me. That's what I use longlineing or spider rigging too.
Mark 1:17 ...I will make you fishers of men