Hi! Thanks for your comment!
I’m not exactly an expert on this subject as this is just stuff I read online and I am sure there are others that could provide better advice than I can. I’ll try to do what I can though. Plus, I am not exactly at the age where I should be having children, so my thoughts are coming from a young adult’s perspective, whereas your though is from someone a lot older.
I don’t know if you’ve tried, but maybe you should talk to your son and daughter in law about this? I feel that the best way to solve the problem is to confront it. One thing about ISTJ’s (at least it applies to me), they have a tendency to feel that they are always right and may not listen to logic (or at least feel their reason is better than yours). Another important thing is that you should try to avoid an argument by not raising your voice. Since you’re an ENFJ, you may have a tendency to use feelings rather than logic. That is one of the big differences between ISTJ and ENFJ, but that doesn’t mean it’s not going to work out. If the relationship is going to work out, both sides must put in the effort. I’m not saying that you’re not putting in effort, I am just trying to make a point about working with people that have different personalities.