You say that but... Yokai Watch was aimed at kids and was crazy successful in Japan, and only Japan. So there's clearly still plenty of kids there that like gaming.
There's a difference between kids and young families.
Both are aimed at kids, but Yokai Watch is something the kids would buy themselves, while Labo something the parents would buy for their kids.
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/