Open when letter ideas

So, I know it’s a ways off since babes only 10 months old. But I’m writing her “open when..” letters and I’m wanting some feedback. Like.. what are some milestones or times you think she might need a letter? I’ve only got: -when you marry -when I’ve passed -when you have your first break up -when you’re feeling down -when moms the bad guy/have an argument -when you’re homesick -when you miss me -when you’re expecting (debated on this one cause I don’t know if she’ll want kids or not) And that’s all I got for now. Of course, I’m writing her birthday letters throughout the years. But don’t know if I should get ahead of myself and write letters for future birthdays that hasn’t happened yet, again, in case something happens to me. So yea, if you have any suggestions I would love to hear them!