When dh and I made our first trip to WDW in 1996 we knew nothing. We went to a
travel agent, looked at a brochure, picked out a hotel (in DTD), and went when we got our tickets. I knew nothing about guidebooks, what was there, dining reservations or anything. We only ate at one TS restaurant - Biergarten. That was all we could get when we tried at dinner time and we had a long wait. Really put us off EPCOT TS restaurants. At the time, I didn't have daily access to the internet so I guess we just had no idea how much info was out there.
Second and third trip, we did a bit more planning but stayed offsite and had young dd with us so she pretty much dictated our schedule. When she was ready to leave, it was time to leave or we would be very sorry. We didn't dare go to a TS restaurant (on or off site) at dinner time with her.
Last trip we discovered these boards and bought a guide book. Our last trip was great. So much of an improvement over earlier trips. We stayed at AKL, ate at Boma, did some character dinners etc.
This year, we have planned things to do death. We are staying at WL, are planning to to TGM style touring, have ADRs every night, etc. Our kids are a bit older (5 and 7) now so we are even planning a couple evenings in the park which we never did before.
But, I remember when I knew nothing and try to be sympathetic of those who don't. I try to help them and usually suggest they buy the Unofficial guidebook to get started. I know that some people are resistant though. All you can do is be kind.