Totally mental

Mental illness is a family matter. If one's family has the resources and heart the person, like the elderly, will be looked after. If the burden is too much the person is abandoned. Forced to fend for themselves but without the ability to learn how to survive, without being able to learn street smarts. The abandoned mentally ill are at a disadvantage.
There are some groups who will take them in. The lepers, shunned by society, forced to wear rust coloured hooded robes, forbidden to be in certain areas at all, and allowed in some areas at night, need helpers for day time tasks. Someone to go to market, someone to bandage wounds, someone to help cook and clean. They look after the mentally ill and the mentally ill look after them. The shunned taking in the shunned.
Spirit people and dreamers are another thing altogether. If it is known someone has visio or prerogative abilities they can be quite popular and locally known. People will bring gifts and food to trade. Offering to pay coin for a service is considered very bad manners. The seer can not accept such a thing for the use of the abilities. The power or vision would be tainted, unreliable if the service was paid for. Not everything is for sale. One can not get everything they want just because they have a full coin purse. The seer chooses who they have visions for and even then can rescind not revealing the vision they had about that person. Most have vague, blurry, or seemingly pointless precognition dreams. Not much use or frustratingly useless. There are a few with clearer, meaningful powers to predict events. It is often a curse as those seeking awnser will do anything to find out what their future holds.