Q&A for How to Reset Tomodachi Life

This is not a glitch. You always have the option to reset the game, regardless of how far along you are.

Usually just to start anew. They may also wish to do it if they got the game secondhand from someone. While there aren't many big decisions in the game that can't be undone, if you regret something, you may wish to reset and start again.

The easiest way to do this would simply be to go into the Town Hall and select the "Island Name" option and it will show you your current island name.

Because your Mii is upset and sad about having to go. When you delete your island, it's gone forever.