Hi, I have experience of visiting both countries so I want also to say a word)
Both Japan and Taiwan offer great options for family vacations, but considering your preference for a relaxed atmosphere, Taiwan might be a better choice. Kenting and Sun Moon Lake are ideal locations with family-friendly resorts like Fleur de Chine in Sun Moon Lake or Chateau Beach Resort in Kenting. Taiwan's smaller size makes it easier to explore without feeling rushed, and the country's warm hospitality is perfect for a stress-free holiday with a toddler.