Are Catholics the only ones who have to do the 7 sacraments?

(7 sacraments: Baptism, Confirmation, Eucharist, Reconciliation/penance, Anointing of the sick, holy orders, and Matrimony)

And why do Cathlics have to do them?

Why don't Protestants (Lutherans, Methodists, Presbyterians, Baptists) do them too? I'm so confused.
Thanks :)
Update: How is it a privilege though? Please explain. I'm even more confused.
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