Induction is the trick. It's nearly as fast as gas.
Induction is faster than gas.
I had an issue when I first got induction where I'd warp my pans because I turned the stove up to max and the metal would get so hot so fast the bottom of the pan would bend.
Oops. Lesson learned.
Sure, but it imposes its own limitations as the previous poster pointed out. There is no 1:1 swap-out for cooking that doesn't require either changing out your cookware or settling for a frustrating and slow cooking experience.
Also (this is a US perspective - perhaps Japan's labor costs are different?), running new heavy duty (240v, high-amperage) power cabling from the main breaker box to your kitchen is another huge cost barrier to electrification - this could easily cost many thousands of dollars. Which is why even places like California, which are happy to add costly burdens to homeowners in the name of "green," are only trying to push electrification in new builds.
It's true though that in a new build, if you have a roof chock full of solar panels and a big battery, getting a heat pump furnace, induction cooking, and all the rest of the electric appliances is super economical and awesome.