Interaction between or among people has not changed over time. What has changed is communication.
Please note that I am 70+ years old. Over 60 years ago my buddies and I practiced what you judiciously alluded to as going beyond jacking-off. We were not homosexual. We were just giving and receiving pleasurable feelings with each other.
I believe that if females enjoy giving oral pleasure why shouldn't males also enjoy the feeling of giving in the same way.
Moreover, I believe that people are the same over time. We are biologically driven and it takes eons for the human biology to change.
Please do not worry about this generation. It differs not from the generations of the past.