If you can convince her to do it early on in retirement, that would be a good thing. I retired at the end of 2012, and we did travel a good bit, maybe 90-100 days a year the first 3 years. In the fourth year, DW got sick right as our travels were kicking off for the season, and we had to cancel almost everything we had planned. She stabilized and is on meds to control her condition and is now doing well. The year after that, my doc called me on THE MORNING that we had planned to leave for a two week RV trip, and told me it was likely that I had cancer. He suggested we cancel the trip and see a specialist right away. That was at the beginning of June. Between that and having to schedule numerous appointments for tests and staging, we canceled all our plans, and I eventually had my surgery across the continent in NYC at the hands of a very skilled surgeon, for which I’m grateful...that was our only travel that year. The following year, we decided to leave California for a state more to our liking. My aging parents did too. In the process of the move, mom broke her leg, her arm, her wrist, and her face was black and blue, although no skull or facial fractures. The problem was, this happened just as their moving van was leaving. They ended up having to stay in our home for weeks while she recovered, needed daily help just to take care of herself. So we couldn’t sell the house, and couldn’t travel. We finally got the house on the market in early 2019, and it contracted, and subsequently fell out of escrow five times...each time we had to cancel our trip, thinking we’d need to get the remainder of our belongings out (we left it staged with some minimal furniture). It took until deep autumn before it finally sold. Then of course, Covid hit. The places we intended to visit early on were closed. Once they re-opened, with massive restrictions, reservations were hard to get, and we stayed put. We have a variety of plans for this year, but yesterday one of my follow up tests came back with a less than desirable figure, and I’ll have to have more tests to make sure that the cancer hasn’t returned.
The moral of the story is: travel while you can! Eventually, you may not be able to!