Just turned 54 and I have a six pack.
It's not easy and I can't keep it for long. It's really not healthy because I need to be 10 pounds under my ideal body weight. It helps that I still have high T levels.
The problem is that these days it is waaay to easy to put weight back on if you don't watch it. A couple years ago I packed on 25 pounds of fat in the late summer and fall. I told myself never again.
I don't believe illusions because too much is for real.