These images shows three (3) categories of teenagers with facial reactions when asked to wash plates. These reactions are common to children at that age. I mean;

1) Children who cry when asked to wash plates.
2) Children who frowns when asked to watch plates.
3) Children who put smiling face when asked to wash plates.

Question: At what age should a child be made/compelled to start washing plates to ensure mastery when become teenager?
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© Emmanuel Omai