Choosing where to move as a chef and soon to be dad

Hello, I am an American currently living with my Japanese wife in Australia working as a chef. As of 2 months ago we are expecting.

Of course, we are on temporary visas here in Australia, so we will have to choose whether to live in America or Japan before our baby is born.

I currently work as a chef and make enough to support both of us with plenty to put back into savings. However, I hear that wages for chefs are not so good in Japan. And as for America, I know I would make decent money but I feel the medical bills and being uninsured kinda negates that.

Does anyone have anecdotal advice for which option would be more stable for our future child? Advice on if chef salaries scale up in Nagoya or Osaka the way they do in big cities like Sydney or Chicago?