My husband has had COPD and many Pneumothorax episodes with his lungs collapsing and lung reduction surgery. He is on oxygen full-time set at 4liters. He is a Veteran and smoker for over 40 years. He doesn't seem to want to quit and he says it calms him down. Most of the people in his company are also smokers. I am trying to convince him to retire and enjoy some time off. He is 64. Our children are very upset and concerned about him. They are also angry for all he has put us through. The problem is my youngest daughter is getting married this summer and her dream wedding is in the mountains. My husband cannot tolerate high altitudes and I explained that to her but her response is if he quits smoking he can do it. I feel really torn about this issue because even if he quits he still will have problems with altitude. Who do I support here??