The constantly quarreling spouses or those living a marital life without affection don't know what they're sowing daily…
The constantly quarreling spouses or those living a marital life without affection don't know what they're sowing daily in their children's hearts - extremely bad effects!
Your children may become averse to marriage because of you, and "disbelieve" in the institution of family, as they see marriage as responsibilities and burdens with no tranquility, affection, or mercy.
Then they may become averse to the Shari'ah that made marriage the only legitimate outlet for natural instincts!...out of ignorance in separating principle from poor application.
Indeed, how many girls turned away from the male gender, and even fell into deviation of natural disposition...and the tense, bitter, dry atmosphere in the home played a role in that.
You realize then the wisdom of Allah when He said: (Then either keep [her] in an acceptable manner or release [her] with good treatment)...there's no third option..the option of frozen marriage and life devoid of affection under one roof is worse than a separation with decency and kindness.
None of this is justification for children if they deviate...for every sane adult is responsible for their actions...but we say to fathers and mothers: Fear Allah regarding your children!