The president of Ukraine is a former comedy actor and he still joked when he was president. Distributing 18,000 weapons to civilians without training is tantamount to sacrificing the people for nothing.
In extreme situations that's what you do to survive.
Russians in WW2 were attaching explosives to dogs so that they'd run towards enemy tanks and explode. Women were fighting without any training, children were fighting. It was the same in China when Japan attacked. Chinese teenagers were fighting and dying to stop enemy forces. In occupied Poland kids were working as couriers, delivering orders to soldiers. Many died because Germans were targeting them to stop communication.
You don't need much training to shoot AK47 and throw grenades. Children in Iraq and Afghanistan proved it to the US military.