The problem is it’s so easy for a mother-in-law to get it wrong. It seems there is an endless list of unwritten rules. Be involved but not overbearing. Be supportive but don’t overstep. Help with the grandkids, but don’t take over. Offer wisdom but never advice. Obviously, I haven’t mastered this list. The sheer weight of the requirements makes it intimidating even to try. The most frustrating part is that it’s nearly impossible for a father-in-law to mess it up. He has to be welcoming. That’s it.