Death is a fact of life, but that doesn't mean we're all comfortable with it. I grew up on a farm. I also went through some Vet Tech classes and have done some wildlife rehabilitation. There isn't a single death that hasn't had an effect on me. Death depresses me to an almost unreasonable state. I blame that on working at a Nursing home when I was still in my teens. I have never, however, threatened not to get another pet so I wouldn't have to go through that again. I have pets to focus on life and happiness. When it's their time, I'll be there with them, right beside the Vet letting them know they were very loved.
