Why is this house rule good that a patron must hit 11 or below? Any house advantage or game security? Please let me know how much percentage will affect on the house edge.
I don't want to specify the game protection reason on a public board, but think carefully and the reason should come to you. There is no effect on the house advantage.
For example in many german casinos.
The casino argues that the ploppies make
very often trouble if someone doesn't hit.
That changed their good run and prefers dealers next cards, typical ploppies.
And to avoid this they made this rule.
I can understand.