First of all, pick a place about a mile from where your mother lives and ask her how difficult it would be to walk there. After a short pause, add "and back". The after she answers, say "four times in a row".
Then she will give you a look as only a mother can do to a child which implies "Are you out of your mind". Explain to her than most people tend to walk 8-12 miles per day at WDW. Once around the Epcot World Showcase Lagoon Promenade, is about 1½ miles. And that is without actually entering any of the pavilion areas.
Then ask her the following questions. Here are the suggested answers to go with them.
1. Are you disabled (even temporarily)? Yes.
2. Do the people you are traveling with, such as your family, know you are disabled? Yes.
3. Do you expect to meet anyone you know during this trip who may not know you are disabled. Probably No!
4. Do you expect to meet a bunch of people who you will probably never meet again in your life? Probably yes!
5. Is there any reason at all that you should care what these people think about you? Absolutely No!!
6. Will using a wheelchair or
ECV make for a better vacation for you
and your family? Absolutely YES!