The derogatory sense of "manchildren" is intrinsic to the concept, you can't invent new words to try to avoid it, tho a genderless version is needed.

RNAi [he/him] · 2 years ago

The derogatory sense of "manchildren" is intrinsic to the concept, you can't invent new words to try to avoid it, tho a genderless version is needed.

TrudeauCastroson [he/him] · edit-2 2 years ago

Yesterday's model railway people have become today's adult Lego people.

I think Lego for adults have been a thing for a while, it occupies a space in-between model rail and big puzzles. I remember the Taj Mahal set was one I saw as a kid that looked really cool but was very expensive.