Yes, '70's not 80's, my how time flies!
I rolled out an ATM network for the bank I worked for around 1979 as I recall, the business case for us at the time was reduced staffing and branch costs. Those savings were never realised of course. In the UK today, branches are closing at a rapid rate, fifty years on the savings are being realised but the cost of digital outweighs those savings, alledgedly.
Most people expect products and services to increase but the cost of them should be borne by the people that use or buy them, not by the people who want a safe repository for their savings. I keep low to mid 5 figures in my UK account, I don't get interest, I don't use any services other than to check my balance from time to time and to ensure funds have been recieved. If my bank can't make a decent turn on the funds they are holding on my behalf and also want me to pay a fee for them to do so, well, what can be said!