This is a mixed issue for me.
Personally, I don't believe suicide in most cases is right. Unless someone is suffering horribly from mental instability (not 'omg lyke im ssOO deprezzed 'cuz my 'rents won't let me c fall out boy'. In this case I mean someone who has had medical and professional help yet they continue to spiral downward.) or is suffering physically (someone so ill that they are permanently bedridden), they should not be "euthanized". (I think I spelled that right...)
However, the problem with legalizing suicide is the abuse it may get from people who don't have severe mental or physical problems. Assuming that you must be legal age to even apply for assisted suicide, can you imagine the number of 18 to 20 year old kids who would sign up for it just because they think their life sucks? It'd be so easy for people like that to lie and get the assisted suicide.
I don't have a problem with assisted suicide as long as the people who are doing it aren't abusing it.
Now, that said, I don't condone suicide. I think it's stupid and selfish. Why waste the life that you have? Life is meant to be hard, it's meant to be tough. We're put on this earth to make mistakes and to learn from them. If there is a great emotional pain in your life, I'm sorry, but there also has been in mine and I'm still here. There has been great pain in my mom's life, my dad's life, my family's life, and they are still here. In fact, everyone has a great pain in their life that damn near cripples them. But the difference between the different pains is the people who overcome them and the people who let it take them.
And, with that final rant, I still say that the only people who should even be thinking about suicide are the ones that I talked about in my first big paragraph.