The demographics for each platform are different, switch is popular with elementary to high schoolers, and small families, ps4 is popular with the highschool to college age kids, and young men, and because the latter demographic has much less free time than the former,the latter is less likely to buy a games console as they have much less time to enjoy it.
Ironically, psp, ds and 3ds seem to be the console of choice for business men who game, since they can do it during the work commute with relative ease, and the consoles themselves can be bought very cheaply pre-owned.
I have never seen anyone on their commute playing switch, it is most likely due to its size, it is not the sort of size that would be comfortable to play on a packed train.
You only really see young kids in the mall with them sat somewhere playing while thier parents do the shopping.
Back to the point, different demographics have different buying patterns and available time patterns, for example early in a year workflow is generally slow, with the days being longer people studying or working gave more time, where as kids and young teens generally make use of the time to play outside and hang out, but the closer to winter you get, the less available time college and university students have, there's exams, cramming, shorter days, businesses ramp up the workload in expectation of the holidays, (December is the most stressful month for workers in japan) where as kids are spending more time in the house bored because it's dark and cold out by 5pm, and schools out for Christmas, so they have much more time for things like gaming.
So no, ps4 sales don't cut into switch, and switch sales don't cut into ps4
Last edited by NATO - on 30 November 2017