Does anyone know how/why my armature isn’t bending the legs? When I grab the torso it just pulls the entire character down, instead of bending at the knees. Again, this is the ‘Rigify’ add on (used in legacy mode)
It would be helpful to show the state of your sliders on the properties panel to the right (N on your keyboard).
Just a first glance check though. By default, IK is off.
Okay, here’s a pulled back view. I can’t find any IK sliders on the right by pressing n? Sorry, fairly new to rigging.
When you click on any of the IK or FK controlers of an IK chain it will give you the options for that chain. The IK/FK slider is 0 by default which is FK.
PS: Do yourself a favor and turn off name display. I think you will make it easier to see stuff. 
Richard, you are a life saver. Thank you so much!!
ha ha ha… yeah. Well. This is how I usually learn so many things. Starts by WTF? And ends with… oh that. Easy.
But I highly recommend something like this: