There is no doubt in this as it stand to be true, most relative always watch people around them and ahead of them to be a mirror before them it's either you influence them positively or negatively, if the addiction is beyond control it may be of negative one to relative as the are going to fall into the addiction without control, one having people around him need coordinate itself in anything apart from gambling to to know that anything he does around where relative are emulating from him.
We learn things from watching other people around us and our relatives are those that will be around us more often meaning they will always have an impact in our life. If we want our relatives to have a better life and not make the same mistakes that we made then we have to be very careful of the things we do around them and this includes gambling because gambling has a very attractive feedback. When our relations always watch us gambling, they too can become a gambler and they would not know how to gamble in a way they will not get addicted to gambling since they are new to gambling and do not have experience of how gambling should be handled. They could use an enormous sum to gamble and will lose because they get addicted trying to recover their losses through gambling in an abusive way.