@kimmjohns We are in a similar position as you. We love my in-laws, all of them. We have gone out of our way in the past to see my BIL, SIL, and nieces when it works for them. This has meant jumping on short notice and cancelling plans in order to accommodate their schedule, all to make my MIL happy. This has gone on for far too long, 18 years or more. This past Christmas season I finally said that we were not going to make a visit with them a priority. If they come into town and it works with our schedule, we will be there, but we won’t wait to make plans or cancel existing plans to see them. This was a freeing moment.
Almost a decade ago, my MIL and FIL wanted to take all of us to Disneyland. That meant my elderly in-laws, my uptight BIL and SIL, our two nieces, both under 8, my husband, myself, and our 5 kids who ranged in age from 2 to 10. I politely said no, but thank you. I said that our kids just were not old enough for the trip to be enjoyable, and I would not take the kids until the youngest was at least 4. My MIL planned a trip with the BIL/SIL and nieces and kept getting confused about which year we would be willing to go. I finally relented and said that we could go the same year, but not at the same time. The in-laws all went early in the year and then we went with MIL/FIL late in the year. It was a very stressful trip, but it would have been intolerable if we had gone as a complete package.