When you are old and have enough money that you can't spend. then you can only do what makes you happy. maybe that's what the elderly feel when they come to land-based casinos even though they may be physically limited.
Yeah you're right the elderly people are priveledge to enjoy or be opened to less stress and at that point they indulge themselves with things that gives them happiness at a high peak and most of them are retired with alot of funds in their account so they don't mind spending some in gambling and get the fun they desire and that's why stopping gambling habits at old age is rare cause that's the most integral part of an individual.