My most personal coffee mug is like 10 years old as well. And it's also breakable. Long live your Japanese mug! It's really pretty; I hope it survives your kids 😄

Glass mugs have a short life expectancy. The reason seems obvious, but ceramic mugs don't like to land on the floor so easily, or bang into other things so easily. If I had a mug store, I would include a lot of translucent glass mugs on my display shelves; this would ensure that I sell a lot of them because they don't last much 🤣