Hey that was an excellent response and I appreciate it - good faith arguments are few and far between here. To your points I disagree with one and agree with one.
I don't think Israel has any responsibility in preventing Hamas from recruiting child soldiers. If it was an internal terrorist group under Israel's jurisdiction, my opinion would flip. As an example, the US is responsible for preventing the Proud Boys from recruiting children, but are not responsible for Mexican cartels doing so.
To your second point, Israel absolutely is required to treat child soldiers as victims from the moment they are captured, surrender, or are meaningfully "separated" from Hamas. I haven't seen any evidence of this and personally doubt they are doing so. If we discover minors being interrogated in POW camps, that's going to be a huge problem.