I thought about the legal and of course the abuse of this type of suicide , and the avoidance of the abuse is three fold: 1) doctor present
The last thing we need in the USA is one more way for the "health care" industry to suck up more of our money.
I take that back. The last thing we need is more money into the pockets of the parasites known as "attorneys."
3) a person of faith , no matter the faith
Suicide for any reason is regarded as a sin by by nearly all Christian denominations. You're "thwarting God's plan." It would be very difficult to recruit a Christian minister to witness this event.
Perhaps you mean merely a lay member of a church. I'm an atheist, as are virtually all of my friends and family. Where am I supposed to find a "person of faith" to witness an event that he regards as a "sin," performed by a person that he regards as a "heathen?"
And the presence of the whole family and friends, at the time of the suicide
The reason many people choose to end their lives in private is, specifically, because the people in their life are selfish and want him to continue living in pain and/or hopelessness and/or a total lack of dignity. These are hardly the people he's going to want around when he sets up the helium balloon. They'll just pull it off!
Not to mention, it's statistically likely that some of those people will have a religious objection to suicide, and will interfere to halt the process, even using violence if necessary. Not all atheists are as lucky as I am, to not have a few believers of supernatural bullshit among their family and close friends.
The whole point of the helium balloon and other recently developed suicide technologies is
specifically for the patient to be able to prepare for it weeks, months or years in advance without attracting attention, and to take care of it
in private.
A lot of people are simply selfish. They want Grandpa/Momma/Uncle Joe to continue living even if he is suffering mightily and is certain to get steadily worse. They will make his last moments just absolutely fucking
miserable, and it's quite likely that one of them will interfere and try to halt the procedure. These are not the people who should be invited to witness Grandpa/Momma/Uncle Joe solving his own problem.