I started with the "succah-precedence" question but it turned out some other premises are unclear.
- One is obligated to provide shelter for his kids (let's say up to 18-22 Rambam Ishut 12:14) .
- One is obligated to provide a Succah for his underaged kids as a Mitzvah of Chinuch (to make them used to stay in Succah. Mishnah Succah).
Is a man obligated to provide a Succah for his grown-up sons
(13-22 that live with him, of course)?
(Let's imagine one flies abroad and leaves his sons at home)