Someone I know just posted a picture on Facebook of them starting out a 4 hour drive to a reunion. Their LO will be 7 months tomorrow and he is in a forward facing car seat. I am not at all close to this person, but I am so tempted to private message her some information on the dangers of forward facing. At the same time, I don't want to come off as a know it all. I just don't want to be that person who tells other moms what is best for their kid, but I want to make sure she is well informed.

What would you do?