Hi Garfield,
I'm glad you are back, and congrats on 4 days, that is an excellent start! I have been sober for 20 months now, and my husband still drinks beer daily. I know that four days in I would not have been able to handle being around wine, it would have been too easy for me to slip back into drinking, or to justify "just one," as I had so many times in the past.
I am with Dee on taking the kids somewhere else, and picking him up after. I l ow my own kids would be more than happy to do something, rather than sit in a brewery, even if they had incredible root beer. Is there something nearby that you and the kids can do while he is there?