It's a shame that Nintendo are never going to remove the kiddy image, they enhanced it during the last two generations, and although they might try to aim it an older demographic it wouldn't be working always.
That GBA ad though. I personally don't all care for marketing and not really expert.
I wish they'd do something humorous in their ads like crushing the reputation PS5 and Xbox I-Decide-To-Be-Ambiguous-Again.