Which group was mostly affected by the stamp act

The Stamp Act was passed by the British Parliament on March 22, 1765. The new tax was imposed on all American colonists and required them to pay a tax on every piece of printed paper they used. Ship's papers, legal documents, licenses, newspapers, other publications, and even playing cards were taxed.

Explanation:

because it was a act that people never wanted because it didn't do nothing but cause many problems