The result of BAD PARENTING and HORRIBLE TEACHERS!
The result of not homeschooling your children throughout their vulnerable years.
I’ve also seen it happen many times to homeschooling children whose parents decided to enter their children in govt secondary education.
James Dobson expressed it well — values are caught not taught. If you love your children, protect them during this time from evil influence. Bad company corrupts good conduct. (1 Corinthians 15:33)
The result of BAD PARENTING and HORRIBLE TEACHERS!
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And an across the board failure of our institutions.