Could be one of many reasons: maybe he doesn't like watches. Maybe he doesn't like apple products. Maybe he doesn't like smart watch as a concept. I didn't say anything about his wealth.
Primary function, form, and suitability to its environment come first. Then at the best price available. Hence the walmart watch.
My criteria is simple. I want light weight, small and out of my way, not to impede any of my regular activities (which includes meaning my regular shirt sleeves will slide over it naturally on their own), and it should be functional on its own, and require minimal maintenance or consideration.
My watch fits all that criteria. And I don't have to give it any more thought that when I put it on or take it off. It works reliably.
And it's as useful as the apple watch would be if you don't have it tethered to a totally separate device. In fact, in that scenario, my watch can probably do more.
But most importantly, my watch doesn't get in my way. And it's cheap enough that if it were to break, then who cares. But despite that, it survives everything: swimming, working on cars, building houses, mountain climbing, camping in the woods, anything I do with my hands, it survives. Sometimes I brush the debri off its face so I can see the time. But it's always undamaged.
I have tons of Apple devices. But they are not always the most suitable for a purpose. Take the first iPod nano. It was too delicate for regular use. So I used a cheapie MP3 CD Walkman in the truck instead. The walkman bounced happily around the truck for years without a scratch.
By comparison, the iPod nano was so fragile that it was scratched up by holding it the first time.
Apple can make some nice things. But they are not always the best suited for daily life.