As teens use Bitcoin more in the future to buy games, services, etc (since they dont need a credit card or a bank), when it comes time for them to open up a checking account, they will laugh at that idea.

"I have to pay you a monthly service fee to store my money?  "I have to wait how many days to transfer money?"  "An overdraft fee is $35???"  "No thanks.  I'll just keep using Bitcoin."

Remember when the idea of not owning a CD or album was ridiculous?  Paying for a download was a crazy idea.  Now, we are paying for streaming services where we RENT music and never OWN it.

Watch what teenagers flock to and invest in it.  Bitcoin will probably catch on with them soon.