DEAR ABBY: My wife and I raised two children — a son who is a successful doctor and a daughter who is a multipost-grad botanist. We are 72 now, in moderately failing health and very successful ourselves. Our children were raised properly. We gave them all they would ever need to succeed and be happy. However, neither one is particularly interested in a loving relationship with us. Holidays together are strained. Frankly, I’m quite sick of both of them. They are inconsiderate, insensitive and standoffish. We make no demands on either of them and never impose ourselves in any way.