When I first found myself in Japan during typhoon season, I was a bit paranoid - constantly checking forecasts and stockpiling water in advance. After spending a couple of months there, I realized that locals stay calm about it because the system actually works. Yeah, typhoons are powerful, and sometimes they paralyze train traffic or shut down shops for a day or two, but it's more of a manageable inconvenience than a disaster.
The Japanese prepare simply and effectively: homes are sealed tight, windows can withstand strong winds, and most importantly - there's clear information and an evacuation system in place. You really notice all of this when you're there. Here's what I didn't see in enough popular advice: before your trip, it makes sense to just search Google Maps for seismic stations or shelters in the area where you'll be staying - they're marked with special symbols in apps like Google Maps. It sounds paranoid, but it'll take five minutes and give you real peace of mind instead of baseless fears.
As for tourism: if you're traveling during typhoon season (roughly May through September), just track the forecasts and be ready for a few days that might not be great for sightseeing. But that goes for other countries with similar climates too. Millions of people live in and visit Japan, and it's not some extreme risk - you just need to be informed about it.