Abolish Mandatory Life In Prisons

Do I agree with the majority of Supreme Court justices who argued to abolish mandatory life in prison? I disagree, I believe that a child under the age of eighteen shouldn’t get life in prison for a crime that wasn’t premeditated or even meditated because, first of all, is that the child's brain is not fully development yet nor are they immature; they don’t know what they are doing. They don't need to spend their whole life in jail.

I strongly believe what I said that a “child’s brain is not fully development” which is in my introduction paragraph, if a child is under the age of seventeen the brain is only halfway developed. The brain doesn't develop till the age of 25. I believe that a minor shouldn’t be in prison nor juvenile hall because

they didn’t know what they were doing. “...National Institutes of Health have developed technology to map the patterns of brain growth in individual children and teenagers. With repeated brain scans of kids from three to twenty, we pieced together “movies” showing how brains grow and change.” which means that the brain is still growing over time as children grow.
“But what really caught our eye was a massive loss of brain tissue that occurs in teenage years. The loss was like wildfire, and you could see it in every teenager. Gray matter, which brain researchers believe supports all our thinking and emotion, is purged at a rate of 1 percent to 2 percent a year during this period.” which is not enough for a kid to know what is really going or what the consequences will be for their actions; like facing a life sentence in prison for killing someone or attempting to kill. If a child is serving a life sentence from the time him/her is let’s say 12, their whole life is ruined at the age of 12 because they did something that the child brain couldn’t process because the brain wasn't fully developed at that age.