Their consoles and games are mostly designed with kids and teens in mind
No, they're designed for Everyone, games and toys aimed directly at children have far more juvenile design and do not offer much appeal to older folks with reviews clearly centered around the appeal and/or benefits for children alone.
It's not only by quality, it's by design. Nintendo has several primarily for kids products like Labo as well and, quality products as they also are, you don't see many adults singing their praises for anyone but the children of the household.
The Labo vehicles kit is a barebones and simplistic game with little to challenge and satisfy an adult with given their experience with meatier racing/flying/sandbox/whatever games, but for a young child that sees the wonder in the process, learning how it works (we already know at least roughly how shit works with some insight in game development) and then driving/flying/whatever it's on a whole different level, so when an adult says it's well made and all that, that's clearly the target audience they have in mind rather than themselves and other adults. Similar for other Labo kits too.
Kinda like the popular pixar movies made for everyone vs strictly for kids shows no adult spends time with, like whatever is today's equivalent of teletubbies or that pink dinosaur thing, I forget its name, or lazytown and such. Their quality here would be if they can keep the kids, not me, engaged and entertained while not giving them any wrong signals so as to be considered safe by all parents. And their inability to keep me entertained wouldn't mean they're not quality products of their own, for their audience. obviously. Nintendo is clearly in the former category usually.
By Everyone I clearly don't mean the rating here, all it takes to get that rating is the themes and safety, we're talking game design. And Teens is hardly a great descriptor, since that can include what, adults of 18 and 19 years old. Do you not play the same genres you did back then? Does a teenage boy not see the joy of Yakuza's gravure model boobies and spend far more time in the relevant mini games than an adult might be inclined to do on top of the blockbuster action that's not unlike films they're free to watch? Yakuza being M/AO by pc standards doesn't mean much, it's teen heaven.
And lol as if Sony doesn't market to teens but to adults. They've been going after teens since the original PS1 and continue to do so most heavily. And Yakuza itself does the same and even had a PSP game out. It so happens some of those early teens are now older, still attracted to that stuff.