Well, SheSkis, it looks like the overwhelming majority of replies from this group are for your dad to give it a try (with appropriate caution, of course).
Don't even think of asking the same question of folks (particularly, those in your family) who don't ski or who have only gone a few times in their lives. I'm sure all you will get are responses like, "Whaddya, nuts?!?! He'll kill himself!". Skiing is still perceived by the general public as a high risk activity. Of course, since most of us here are reasonably experienced recreational skiers and/or instructors, we obviously have a much more objective view of the risks and rewards.
One more comment ... Exactly like in Oboe's case, my oldest beginner student this season was also 68 years old. She was in a group lesson with about 12 other beginners ranging in age from about 20 to 65 years old (her husband). They were all from southern China. None had ever seen snow, and only about two of them spoke English well enough for me to understand them.
Because of being so bundled up, I had no idea how old "Grandma" really was until it became obvious that she was by far the best student in the group. She over-rotated a couple of times, but I don't think she fell even once. When I saw how good she was, I decided to ask one of the English speakers to translate for me, and only then did I learn her age. I also found out that she instructs Tai Chi just about every day.
"Grandma" was linking 'em pretty well down the bunny slope by the end of the hour and a half lesson and was obviously enjoying herself. She probably was basking in the feeling of "still being the best" in some physical activity.
The other members of her group were extremely supportive and encouraging of her, even moreso than I would expect to see in a similar group of westerners. As per Ott's comment, at the end of the lesson, I tried to caution her to be careful when she practices on her own, but was reassured that they were leaving the resort in a few minutes, flying back home in a few hours, and it was unlikely she would ever come to the USA or ski again.
I perceived it as quite a bittersweet moment, but they obviously didn't. I missed the next lineup because with their newfound enthusiasm for skiing, and the fact that just about every one of them had their own camera, all possible combinations and permutations of individuals had to photographed together, most of them involving "Grandma" and me. [img]smile.gif[/img]
Grandma will probably tell the story of her day on skis for the rest of her life. My guess is that SheSkis' dad will have an equally good first day (if handled with reasonable care) and a long and happy skiing career.
Tom / PM