Traditional banks will be gone within 30 years.
The only thing that can take over from the banks is BTC as of now.
I've experienced the glory of BTC $3K's to $69K, but sadly I traded for it at least 50 times, incurring flat not cheap fees and I didn't maximize my gains, I always had a 20% take profit or 10% stop loss.
But in recent years I have been exposed to short-term trading, which can be done within the four major exchanges, efficiently! The fastest you can get a profit in 90 seconds, this short term trading is really perfect for me, thank God.