star wars - Why didn't Yoda have any children to take care of him during his last days given that he lived up to 900 years old?

My son cried when Yoda died. He asked me why no one took care of him during his last days. Given that Yoda was around 900 years old, surely he would have lots of descendants to look after him. Why were his offspring so unfilial?

Answer

Yoda has no known family; his background is deliberately kept vague.

From an interview with George Lucas:

So he's a mystery character, he's a magical character. He has no background. He comes and he goes. He's the subversive secret mysterious stranger that enters the film and then exits at the end.

Yoda's page at the Star Wars Databank lists his species as "unknown" and makes no mention of any family. In this answer, @Richard lists all members of this species to have appeared in any licensed Star Wars media. It's a short list (Minch, Oteg, Vandar, Yaddle and Yoda), and none of them are Yoda's kids.

_{And this page, claiming that "the Children of Yoda and Yaddle were a bunch of weird asshole frogs", is decidedly} ^uncanonical!