What percentage of people will self custody bitcoin in 15 years do you think? 

I think all. Here’s why. 

The family is the cell of society. So if one person in the family — call him bitcoin grandad — gives a day’s wage of bitcoin to the children, godchildren, nieces, nephews, brothers-in-law, and grand-babies on birthdays or other life events by a dozen words on a metal plate, they are self-custody, even if passively. Even the skeptics don’t throw the words away. 

This is happening in now, or can be, in your family, if but one person steps up.