It feels guilty working on my kid's education

We recently started to teach my daughter to read after she started writing letters and asking about how certain words are spelled.

My son has taken to math like his father and is quite the human computer. I ordered some books for them and my wife and I have begun teaching them to read and do higher order math outside of school.

I feel guilty about this and it made me realize how different the education system is and the way I think about it is.

When my kids show an interest in activities outside of school, we get them involved and see how great they can become. We lessons, tee-ball camps, ninja class, etc. If they are falling behind in school, we get them tutors.

It is strange to me that we have a "no schild left behind" mentality, but also a "no child ahead of the pack" constrain. It's a penalty for a child to be above the current grade in certain subjects.

The teacher says my son "master" first grade math but I feel like I am nagging when I ask for some individual assignments or extra curricular work.

To be clear, the teacher is all for it and she says that it is not an inconvenience, however, my gut tells me that sooner or later it will be if he continues. A friend had similar issues with his kids and they were told to go to private school.

Public schools are more or less a safety net and I get that. But parents shouldn't be discouraged from raising the bar and nurturing their children's mental strengths. Why not treat reading/writing/arithmetic with the same fervor as one would a virtuoso in piano or baseball. If a child can do calculus in 8th grade -- let 'em.