We have always visited each family alternate years - example below
2017 - my family came to ours
2018 - DH family came to ours
2019 - covid!
2020 - we went to my family
2021 - we will go to DH family
So it alternates usually. However my in-laws are no longer well enough to host and have said they cannot navigate at my brother in laws house anymore because of the stairs so would need to come to us to host each alternate year now (they have a 3 story with no access other than stairs).
This would mean us hosting them every other year and my family every third year. It's quite stressful and I'm not looking forward to cooking more years.
I worked Xmas eve night this year and would not have been able to cook and host on Xmas day.
Anyway I was talking to DH and we want to change how we do without upsetting every one.
Would it be wrong to suggest every one have Xmas at their own home and we will do a Boxing Day buffet?