If it was someone else I would ignore it, why is it like that? because they don't know me in depth and don't know where I live so just relax even though other people will comment badly even though I'm gambling. But I always anticipate this by not gambling in public places, especially when we're in crowded places and there's not much difference in seating too far from other people because I feel uncomfortable if other people see my activities whether I'm chatting or playing on social media or even gambling because they could peek or want to know what we want to do. Because I also don't like peeking at other people's cell phones because cell phones are personal.
Gambling is meant to be done at a leisure time when one is free and not in an open place or crowded environment because we live is a world where people are more interested to know what others are doing and since you stay looking at your phone in a public place there is no way someone will not peep to know what you are doing or watching. Avoiding doing some personal things just like gambling that most people in the society feels that people who are into gambling are either wayward or useless, no need to give them opportunity to talk ill about simply because they have seen others go wrong direction in their gambling life.
So whatever the reason, I don't care about other people's comments, but if my friend reprimands me or comments on what I do, whether it's gambling, I will respond why is that? because they know me and my family. So I'm maybe will explain that my gambling is healthy gambling, sometimes my friend is just worried if we gamble to the point of becoming addicted, therefore usually good friends always remind us not to go beyond the limits.
Exactly, so far as they don't know you there is no reason to give them any explanation or care about what they said to you, but if it involves someone who knows you or a friend of yours it is good for them to know your are a gambler because they can give you good advice on how to go with your gambling because they are your friends so they will not like anything bad to happen to you so they are likely to be helpful to you.