If I need to stay late a few hours after work than normal, it requires immediate triage. If my wife has a busier than normal week, it may mean I go in later to the office or come home earlier, at a minimum we will lose sleep that week on meal prep etc.
She did a retreat while breastfeeding and it require her to come home each night so our son could eat. She went on a work trip and I flew out with her and the baby and took 2 vacation days (still breast feeding)
Tbh, a non-local retreat i.e. more than an hour drive, and either of us would skip it.
Its just not a nessisary business practice and IMO is agist.
Its hard having a family and having two working parents. Offsites make it harder.
If you are going to organize one, you should understand that while they have real value, they also have a real cost for participants and their time should be treated like gold.
Overall, I'm not sure if you are organizing it, but if you are, you should be very sure that all those offsites are not too taxing on your team. I'd personally be very frustrated, and I know coworkers at other publicly traded companies I have worked for complain about offsites, but not to their managers.
i.e. you think they are helpful but secretly your team or coworkers are very unhappy.
Business travel is both a personal preference and part of the bigger career direction tradeoffs that must be weighed when choosing an employer.
"I have a family" isn't something to hide behind when your job includes a small amount of travel. It's something that can be accommodated and planned for.