Playstation is the console for adult gamers who care more about realistic graphics, life like violence, and more serious toned stories.I would argue Sony is the system for families. More kids plays PS4 than they do Nintendo
HouseHolds have Nintendo consoles if the parents are still into gaming and Nintendo scratches a nostalgia itch
Its really the complete opposite, households have Nintendo consoles when the parents are not into games but have kids who are. It's the cheapest option, and those parents usually dont care about the hardware difference between consoles.
Parents who play video games usually have a ps4 or X1 with a switch for the kids and family games.
Nintendo mainly focuses on kid friendly multiplayer party games that are ment to be played locally. Once or twice a year they might have a big budget triple A game like zelda, but they make it clear that it's not their main focus.They are doing what Sony and Moicrosft is doing. They just don’t get criticism for their shortcomings like Microsoft and Sony.
Sony any Microsoft may attempt to cross into Nintendo's lane every now and then but that is not their target demographic.