I called someone today who still has dial-up. As soon as I dialed the number, I heard a shrill beeping that eventually cut to the dial tone. I had no idea what it meant, but someone a bit older than me dialed the number, and immediately told me it was dial-up. Age adds context to things that youth doesn't understand. There are people around you who know more than you, and people who know less. Everyone brings their own grid of understanding to the situation; based on age, location, personality, number of years they've been married. The list goes on and on. Often, it's easy to forget that others know more than we think.
Remembering and learning from someone else's experiences will save hours of time and endless trouble.