Comment on: More education needed in Dubai Metro’s Priority Seat
I have never been to Dubai but my guess is like everywhere else, there is a huge dose of inconsiderate behavior. There are some people that are rude and intentionally so (or at least know they consistently are selfish and inconsiderate and don't care to change). There are many more people that like to believe they are a nice person. If you call to their attention some action they can take to be considerate they will be considerate.
My guess is you don't have to demand anything just ask if someone will let you sit. Then some in the "I think of myself as considerate" group will let you sit.
For those in that group, my thought is: it is better to actually be proactively considerate. Considering others gives the impression (to me) that it is a proactive act. Inconsiderate is the absence of that proactive consideration of others. And not being rude after it is brought to your attention, is certainly better than continuing to be rude. But we can do better than that.