Yes, up to 1000 of the prisoners being held by Israel are kids.
They are systematically tortured physically and mentally, degraded and humiliated whilst being held.
From the article:
Palestinian children in the Israel military detention system face physical and emotional abuse, with four out of five (86%) of them being beaten, and 69% strip-searched, according to new research by Save the Children. Nearly half (42%) are injured at the point of arrest, including gunshot wounds and broken bones. Some report violence of a sexual nature and some are transferred to court or between detention centres in small cages, the child rights organisation said.
…
Most children are beaten, handcuffed and blindfolded during arrest. They are also interrogated at unknown locations without the presence of a caregiver, and are often deprived of food, water and sleep, or access to legal counsel, according to the research. The main alleged crime for these detentions is stone throwing, which can carry a 20-year sentence in prison for Palestinian children.
60% of children experienced solitary confinement with the length of time varying from one 1 day to as long as 48 days.
Jason Lee, Save the Children’s Country Director in the occupied Palestinian territory, said:
“Each year approximately 500-700 Palestinian children come into contact with the Israeli military court system; they are the only children in the world to experience systematic prosecution in military courts. Our research shows – once again - that they are subject to serious and widespread abuse at the hands of those who are meant to be looking after them.
“There’s simply no justification for beating and stripping children, treating them like animals or robbing them of their futures. This is a child protection crisis that can no longer be ignored. There must finally be an end to this abusive military detention system.”
https://www.savethechildren.net/news/stripped-beaten-and-blindfolded-new-research-reveals-ongoing-violence-and-abuse-palestinian
Save the Children also created a report:
“More than half of the children consulted for this report were denied access to support and comfort from their families, and in some instances they were made to believe that their families had abandoned them – threatening a key pillar of psychological resilience, jeopardising their ability to recover.
In every respect, the Israeli military detention system appears designed to render Palestinian children defenceless.
An Israeli boy throws a stone from a settlement at a Palestinian child. In the unlikely event that he is arrested, he will be bailed. If he is questioned, it will be with full safeguards. If he is prosecuted, it will be before a juvenile court, with his parents and a lawyer present. If convicted, he will be dealt with in the community under the supervision of a professional probation service. Juvenile justice in Israel ticks all the boxes.
The Palestinian boy throws the stone back. In the small hours of the morning soldiers of the Israel Defence Force burst into his home, terrify the family, seize the child and transport him, hooded or blindfolded and face down on the floor of a military vehicle, his hands bound, across the border which separates the occupied territory of the West Bank from the state of Israel.
There, in military custody, with no access to parents or a lawyer, he may be kept in isolation for days; he will be shouted at, threatened and possibly struck by an interrogator who wants the names of other children.
He will be required to sign a confession, often in a language he doesn’t understand. If he eventually sees a lawyer, he will be advised that there is no point in pleading not guilty because practically everyone before the military juvenile courts is convicted.
It may be months, even years, before he sees his family again, and when he does he may well be permanently damaged.”