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.
100% correct.
Children can easily master the work of their parents and later children learn that work from their parents and children later love to do that work. So bad things like gambling should be done in complete isolation from children so that children cannot see and learn easily.
But it is sad that in my locality there are many fathers who gamble by playing cards in public and seeing them young children are showing interest in playing cards. This interest is increasing day by day due to which various categories of gambling and criminal activities including card playing are increasing at a significant rate. .