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In my view older people use land based casinos basically as networking places rather then for the gambling purpose. it's been my observation that they spend more time on converse with others rather than on gambling itself. Probably some of them act as mentors who help inexperienced
gamblers to enhance their skills.
I saw such old mentors at gambling pits. Old gamblers often spend their time in traditional casinos, not because they don't understand the development of online casinos today, but I think it has become a habit that is very difficult for them to change because we know that when they were young, traditional casinos were where they spent their time, to be honest, maybe for those of us who live in the modern digital era like today think that it is outdated, but actually traditional casinos can be a fun place when we can gather with many people, so as you said, those who are in traditional casinos can interact and also share experiences in their lives and also gambling so far.