Terri, I feel very much the same as you have described

I miss a lot of things that school has changed. Sendinging kids to school feels unnatural to me too (as jannjoe posted.)
Our mornings are rushed, because of school. Our evenings are shortened, because of school. The weekends go by so fast, and then it's back to school.
Our 8 year old (and youngest) told me a few Sundays ago how much he disliked Sunday, that he would wake up and know school was coming the next day and it made him feel sad inside. I knew exactly the feeling he was talking about, I remember dreading Sundays too.
Maybe I would miss them less, and they wouldn't mind going to school as much, if they learned more while they were there. Our 11 yr old spends a lot of his day waiting on others to "get" material he "got" pretty quickly, as does our 8 yr old.
There is also the unfortunate behavior of some of the other students. I won't start on with all of the things our boys have come home and told us that this one did, or that one said, but it sure can be disheartening at times.
Of course, there are positive things about their school, and I do volunteer for things as much as I can. There are some great teachers, great kids and, at times, great activities going on.
For the most part though, we could definitely cover a lot more ground in a school year, and more on their level, than they do now. I supplement at home, when they want to, but for the most part they are so wiped out from their long day at school, and they just want to decompress. If I ever get up the courage, I may pull them out and homeschool them, I would like to at least give it a try. Then, they could get their work done and be able to do a lot more of the extracurricular things that
they would like to do, but are too tired to do after school. Getting to sleep in on mornings when they are tired sure would be nice too!