Some do, some don't. Typically if an individual settles down, it'll be at about the time of sexual maturity, which is in the ball park of 12" or so for most species. My personal hypothesis to explain this is that at that size their niche changes from basically a baitfish to a mesopredator in their habitat.Does aft every stop being so skittish when they are bigger?
*PROBABLY* vatf, but those are awful pics. Apologies, but I can't iron that out for certain.
3rd pic gatf, 4th pic vatf
Those are either batf or vatf. My guess would be batf. Grow it a bit more. I may be wrong. We'll see.