Their average viewer is about 50 years old according to the objective data. Go ahead and watch a few episodes of Raw and let me know if you think a 50 year old religiously watching isn't a bit strange. This is an anecdotal assessment based off a personal opinion, not an objective fact. For a soap opera full of men in spandex that flip around the ring with predetermined outcomes and gymnastics routines faking dramatic fight reenactments, it's a bit odd in my estimation.
In any event, I didn't say they weren't popular or successful. Their financials obviously show otherwise, they're about equally valued as the UFC and the Dallas Cowboys. But I still liken the crowd of people who would follow something WWE to the crowd that would follow Powerslap. It's an odd thing to follow consistently as an adult in my eyes. Hey, did you see Brock won the world title again in that predetermined fake gymnastics fight? and did you see that one dude slapped the shit out of that other dude the exact same way the last 11 matches went? seem equally bizarre to me.