In most religions you get a perk for dying, whether it be "entering heaven" to spiritual enlightenment to "72 virgins".
Most religions also make sure to have clauses that require you to do things in life to earn any of those after life benefits. Suicide, even assisted suicide, is often one of the disqualifiers on top of it.
Also the only reason people see death as not as bad is because, unlike most of history, its relatively rare to see. So they don't understand the gravitas of it until they are in midair off the building, which we have legions of Golden Gate Jump survivors who told us all they immediately changed their mind.
Most religions also make sure to have clauses that require you to do things in life to earn any of those after life benefits. Suicide, even assisted suicide, is often one of the disqualifiers on top of it.
Also the only reason people see death as not as bad is because, unlike most of history, its relatively rare to see. So they don't understand the gravitas of it until they are in midair off the building, which we have legions of Golden Gate Jump survivors who told us all they immediately changed their mind.