Bitcoin can be used by ordinary people but most important is they must be interested with it, and must have full knowledge about the system of digital currency. like in trading which ordinary people were not yet familiar.
No. That should not be the answer only. There should be another way.
It cant be all people will be willing to have knowledge about technology that bitcoin is within.
It must be practical. There are roo many busy people who wont have time for that. One example is in his first post and that is firemen.
They dont have the time to have deeper knowledge about bitcoin so that must be changed.
Give them an explanation that wont take much of their time and still they can invest.