I just so happen to be pretty good at picking up little clues from my step-children and it made me stop and think about the negative affects not attending these things have on young children (young as in up to senior year of high school).
Reason #1 for going to these events:
One benefit of attending any type of teacher or school sponsored event is that it gives your child a chance to make a (hopefully good) impression in their new teacher/s. This includes teachers being able to have an impression of the parents too. Teachers always have a better feeling about their students if they have an idea of how involved the parents are with their children's education. Sorry parents, I know that with multiple children and demanding work schedules it can be difficult to make these events. But, that is the #1 sacrifice you need to decide to make for your children-after all they should always come first. ***If you are in a situation that every last penny is going to determine your ability to provide food, shelter etc for your children that is an entirely different story...and teachers and schools will certainly understand!
Your child is likely still feeling at the very least a little anxiety about the new school year. Things from figuring out where they are going to hang their backpack, to which desk will be theirs, to who they are going to know in their classroom. It is a plus that none of my step-kids need to worry about getting lost navigating an unfamiliar building, but there are still other things that don't seem important to adults that are very important to children-whether they say it or not.
Important information is shared with parents and students at these events. There might be a heads up that will make your life far easier if you have the information as soon as possible. This could be anything from a specific protocol the teacher wants parents and students to follow or a specific requirement of a school supply the child will need for the class. Teachers will find a way to communicate with all parents and students if you don't make it to the meetings, but you might find yourself in a bind for time or at a slight disadvantage to the other parents and students who were able to plan ahead.
Have fun, and help be a partner with your child as they progress through school. Kids worry about peers, and teachers liking them, doing well in school, and having friends they can build friendships with. Parents worry about these things too, but with different perspective. Don't forget, kids are kids and they just can not ever think like adults do. Try to meet them where they are in life, and support all of their needs!!