The good & the bad is that Japan could go nuclear very very fast because everything to make it is there, and given their (sometimes funny) "this aircraft carrier is actually a helicopter carrier for self-defense" kinda stance on defense, I wouldn't be surprised if half of the effort have already been secretly done.
The other good/bad is that the population is very, very, very against any nuclear weapon armament and even holding an army, even Shinzo Abe could only do an "reintrepertation of article 9" because he was aware of this. Public opinion might change with Trump + Taiwan/Korea incident though.
I’m sure you might’ve felt the same, but people are visibly (online and in person) are becoming more aware of how dependence on US might not be the most beneficial thing to do for the country in a long run. Locals really don’t like very in-your-face bullies.
The other good/bad is that the population is very, very, very against any nuclear weapon armament and even holding an army, even Shinzo Abe could only do an "reintrepertation of article 9" because he was aware of this. Public opinion might change with Trump + Taiwan/Korea incident though.