If people of other religions, live their lives by following the principles of good moral behaviour, then these people will receive a good quality of life, in the next life.
If a person wants to get in to Sachkhand, then they have to adhere to 10th Patshahi’s Sikhi, there’s no other route.
Every era has their own maryada and rules. The maryada of this era, is that of Gursikhi, as prescribed by 10th Patshahi.
Some people may ask, what about people before 10th Patshahi came to earth?
10th Patshahi’s maryada was always required. Look at the facts!
Kesh were kept intact, by everyone, until a Demon minded king forced the kesh cutting of Brahmins, in order to rid them of their spiritual strength.
Physical relations before marriage, or extra marital relations are forbidden in all scriptures.
Tobacco is considered evil, even in ancient Sanskrit scriptures.
Alcohol consumption and intoxicants are also forbidden in ancient scriptures.
The killing of and consumption of animal flesh is also a punishable act in the court of the Dharam Raj.
So, any deviance from the maryada will result in suffering. Any adherence to the maryada will result in sukh.
The bottom line...
If you want to get in to Sachkhand, Khandey di pauhal, and strict adherence to code of conduct is a complete necessity.
Whether you take Amrit in this life, or the next life or lives, is up to you...