>>12309034OK.
You're almost certainly confusing shounen with kodomo.
The art in Dengeki Pikachu are clearly hyper sexual, so much so that, as you can see in my image, it was censored in Japan to an extent. Pokemon is a kodomo series, much like Doraemon. Doraemon has plenty of nudity, none of which is as sexually-charged as this.
Shounen is where things start to really depart culturally from the west, but shounen is typically for middle and high schoolers anyway.
But again, since this comic was edited in Japan once the tankoubon were released, someone is Japan clearly had an issue with it.
Of course, the tankoubon version was further edited for western release.