Are they genuinely blind

So I travel daily from Charni Road to Dadar and apparently there’s this group of blind people who come in every single train of mine when I’m travelling . My first question is are they genuinely blind , because I’ve seen a guy and his wife getting on the train completely normal with a blind stick and then acting blind , but it was just once and I don’t know about the others. Secondly , can’t they be taken to a blind shelter where they can be taken care of ????