Embarrassed a perv today...
We have a guy in our neighborhood like that, he's my age, mid fifties. His Dad is in his 70's.
They make a sport out of it, if there are any young girls (12-16 maybe) running around in the summer, or swimming in a pool where they can see, they get some beers and sit out on the porch and watch.
Now, I'm all about looking at some females, but that's over the top.