I've been working remotely for most of my children's lives. Kids learn. Yes, there are some days where they don't understand, but you teach them and everything works out fine. That is no more of a learning curve than all people go through when learning to work remotely. Communication is different, work schedules differ... kids just part of the process of learning to work well in a remote environment.

As far as flexibility goes, I prefer remote work. I'm OK with office work is the commute is short. But I hate 100% flexibility. I do appreciate the ability to make exceptions to the norm as needed, but if everyone is 100% flexible, I find that is just makes you unsure where people are going to be each day, and doesn't really focus the working habits into one mold or the other. Either way can work, but the least productive teams I've ever been on have been mixed between remote and office.