Kind of funny but I remember 3% rate being kind of normal for a checking account in the early 90s. Of course inflation and Fed was higher back then too. What

Kind of funny but I remember 3% rate being kind of normal for a checking account in the early 90s. Of course inflation and Fed was higher back then too. What I don't understand is those people who willingly park their money in CDs at under 1% and the banks proudly advertising these rates. This era of seemingly permanent low(or even negative) rates just somehow seem unnatural. What happened to banker's 6-3-3 rule? "Lend at 6%, borrow at 3% and go golfing at 3:00PM"