If you have a terminal illness then yes.
If you have severe dementia, as long as you made an advanced decision beforehand when you had the capacity to do so, yes.
No when it comes to depression
If legalised, I think we would unfortunately see people being euthanised when they shouldn’t have been. It’s a bit of a slippery slope and even though not every country is as insane as Canada, mistakes would be made, especially over time when the general public becomes more accepting and used to the youth in Asia.