Two large active dogs = Astroturf.

I'm currently renovating a section of my back lawn where my Golden retriever has free roam. If it suits your location, you should definitely have some KBG to help self repair the lawn from all the damage the kids and dogs will do. You do need to be more regular with fertilization and irrigation with KBG.

I went with an 80-20 mix of TTTF and KBG. We'll see how it pans out. The TTTF just started to sprout on Day 4-5.

I bought fence stakes (get the green metal ones) and a think wire fence roll from Lowes and sectioned off the back 1/3rd off the lawn so my dog can't get in.

Still, it's hard to say if it will all be worth the hassle. In general, a little effort on your end could have kept the crabgrass and weeds at bay. Apply a Pre-Em like Dimension or Halts in early spring and then reapply at the end of summer/early fall and that will keep the crabgrass at bay. Spraying with Weed B Gon a couple of times a year (mid spring is a good time) will also help keep a large number of weeds at bay. Those two steps alone will go a long way in making your lawn very presentable.