Torn between full time RVing and aging parents.

It's give and take. I understand she is 91, but she too has been living her life and I hope in the way she desires. You too have a life to live and the worst part would be having regrets. Why not go out for six months and make plans to fly home for a week twice during that time? The blog is a wonderful idea too, someone can read it to her if her sight is failing. Send her flowers or a gift once in awhile.

Keep her content and live your dreams.