Honestly, there is no making the people of Japan happy. They keep hating everything their PM’s do, then when next election comes around they vote the same party right back in. It’s a bit bizarre.
Edit: come to think of it... can you imagine the leader of a political party choosing to step down due to popularity issues, allow a subordinate take the party in a new direction, and suddenly people are much happier with that party? seems oddly familiar. Imagine if the gov was structured in such a way that this is considered normal and then you basically understand why one party is always in power.
Yes, old people are in power in other places too. I live in America. Japan is an extreme case, and the low porportion of younger voters excacerbates the disparity.
Kishida is much younger than either Biden or Trump.