The fire and brimstone approach is baloney.I asked my mom something very similar when I was 9 or 10. She was a very devout Christian as well as a Sunday school teacher. Her answer is why I walked away and found a different path.
I have heard different Christian perspectives.
The fire and brimstone one about torment in hell is the least appealing. Although a part of me likes the idea of punishment and justice for mass murderers and ruthless dictators.
Then there is the perspective that hell is not a physical place, it just represents separation from any communion with god. It is just annihilation and cessation of any existence.
There's a minority view that other kinds of religious and spiritual commitment can lead to a type of spiritual liberation