Hi,
It is interesting how your son is keeping his hair and the reasons why, thank you for sharing. I hope tying the patka is getting easier
For my sons, I usually tied their hair with a rubber band first (like a pony tail on the top of the head) and then i bread it, and then i tie it up. I then add another rubber band to keep it in place. It's so solid it can last for days!
Although i wouldn't recommend it, because there is always small hair falling and then they end up tangling themselves
Once the hair is solid then the patka should stay on.
Let us know your progress /challenges.