i dont think any gambler will intentionally want their kid to see them doing it. kids learn so fast and when they see their parent doing it they also want to try. its good to take caution and be very careful sometimes these kids might be watching their parents without them knowing and then they go to start practising behind them. one thing about children is that the like to practise what they see and if they see it constantly, it gives them confidence to want to try it.
Yes all children try to grow up with the education of their parents from childhood. If a child sees his parents are addicted to gambling then that child will never be good he will at some point be interested in gambling and become addicted to gambling. If any Parents are addicted to gambling I would say never gamble in front of their children because their children will not understand that their parents are addicted to gambling and the child will never get interested in gambling.