ETA: Exploiting adult whales is bad too, if that's the angle you were going.
Is Auto Zone exploiting people who like working on their cars?
I won't make any claims on the addictiveness of fortnite in particular. However, we should all be aware it is certainly engineered in some ways to capture as much attention and time as possible, and this is intentional. Not unlike in nature to the engineering behind cigarettes, although again no claims on efficacy.
The point being, we really need to be doing analysis further than "well they chose to do it". It's not that simple, and it's really never been that simple. Companies are dedicating billions of dollars on solving this problem. We should, in response, at least try to analyze it deeper than that.
You might be interested to read about whales as it relates to loot boxes (in particular sections 1.E-F): https://digitalcommons.law.uw.edu/cgi/viewcontent.cgi?articl...
I don't know what autozone has to do with this particular discussion, but I'm not familiar with their business practices, so I'm not going to venture a guess.
Similarly, toys are fun to have for their own sake.
If you wanna be able to play as Batman or Mr Meseeks or the dog from Adventure Time, that's $60 already.
I can't deny they've made a crazy amount of money from convincing teenage boys that it's cool to buy outfits and play virtual dress-up. But compared to the must-have items of my youth at least you aren't excluded if you have no money.