Thankyou for reading, I know that I am dreamer, but in order to try answer your main question, I wrot it above, We must design some motivation method in such a way when people receive some satoshis they will have to spend it (without sale it) and they can not will keep saved anymore.
It is only my humble opinion.
Where would they get the satoshis from though? Bitcoin is not a sort of business that a CEO or someone in authority can just decide that they would give out satoshis to the people for them to try it out.
One of the only ways to get people to use bitcoin for day-to-day payments, if it's better(or at least if you manage to convince them) than fiat money in a lot of categories.