One of the common civic actions is to take part in events and discussions. How often is it incumbent for the disabled participant to ensure that his/her/their participation is possible?

Eleanor Lisney is a founder member and coordinator of Sisters of Frida. Follow Eleanor on Twitter: @e_lisney
One of the common civic actions is to take part in events and discussions. How often is it incumbent for the disabled participant to ensure that his/her/their participation is possible?