Can a principal of school fail student because miss day even if they are high honors?

No, a principal of a school cannot fail a student because they missed a day, even if they are high honors. While attendance is important, it alone should not be the sole factor in determining a student's final grade. There may be legitimate reasons why a student may have missed a day, such as illness or a family emergency. Failing a student because of one absence would be unfair and could potentially harm their academic progress.