Should people who are a burden be euthanized to spare both themselves, and others because they are a waste of time and tax dollars?

Ro, don't play with life...
If they're still alive, don't do it cuz it's considered murder
(You're killing someone living...are you not?)

No, putting people to death isn't good.
It really depends on what you call a waste. However, it is up to the government to euthanize someone. As well as it really depends on what you refer to as a waste. As well as in most places euthanasia is limited to veterinarians when it comes to animals. So if they are a living being and were to euthanize themselves it would be considered suicide. Suicide isn't the answer to anything.