Well not necessarily everyone because for example see China has banned the bitcoins exchange thus... It won't let the people possessing bitcoins in China to participate also keep in mind that the China is the most populated country in the world and every 5th Person is from.China.. Thus there is already a sector thats not allowed to use bitcoins which nullifies the future possibility of EVERYONE using bitcoins.
Yes, you really do not have to wait for 2022. because now China's central bank has banned local companies to stop transactions related to virtual money, So I do not think there is a bitcoin that will be used almost every person in 2022.