There is no loss of freedom involved.
Catholics view marriage as a sacrament and a covenant. The couple performs the sacrament for each other. The priest presides to insure that they have the proper matter (Man and a woman) and follow the proper form (exchange of vows).
**People don’t marry each other. The government marries them. **
Are you familiar with the Sacrament of Matrimony?
The hands and the vows of the couple are most important!