While there are no special alcoholics, there are alcoholics who experience access barriers to receiving the A.A. message. For some, a six-inch step can be an insurmountable obstacle. A locked access door, blocked ramp or parking problem can make it impossible to get to a meeting. Some members are ill, homebound or living in retirement or convalescent homes; others have hearing or vision loss, learning, reading or information-processing challenges; and still others are elderly, use wheelchairs or canes, or have other mobility concerns. Literature may be hard to understand. Childcare issues may make it impossible to attend regular meetings. Remote geography or cultural differences may hinder contact with other members.