I saw someone making fun of Seonghwa for building LEGOs, while he is in his 20's.
And well... I hope those people step on a LEGO and hurt their feet.
You're never too old for LEGOs.
Even though it says "9-14" on that set.
But I wouldn't say he was too old for this set.
And there are also LEGO sets for adults. (as in being a bit more difficult to build.)
I once saw my brother build a lego ship set and he is older than Seonghwa.
That LEGO set was one that was more difficult than the Star Wars set and it took him 8 hours to build.
No one mocked him for it. (even though I might have called him a nerd for it, but I had not called him childish.)
Seeing that live actually made me want to go build a LEGO set.
Even though I haven't done that yet.
I can't remember if I have ever built a lego set, but I often saw my other brother doing it when he was younger.
I freaking dislike when people say stuff like "This person is too old to do this 'childish' thing"
Like if you're a person who is like this, then I think you're boring.
I'm the kind of person who reads children's books and stuff.
Few years ago, I got interested in Moomins and watched the Moomin anime. (It might be considered childish, but freaking Björk likes Moomins too)
I also used to be that 14 year old, who felt a bit "childish" in compared to my classmates, because I still played with barbies, read the "children's magazine" and watched Disney Channel.
You're never too old for LEGOs.