Field, who is a strong advocate of LGBT rights, says she supported son Sam to get "accustomed to his identity as a gay man", reported the Entertainment Weekly.
When asked on a radio programme about how parents should handle if their child is set to come out, Field, 69, said, "First of all, don't be frightened. And don't put your own prejudices or fears about sexuality - your own fears about sexuality - on your children. Sexuality is a human glorious part of existence."
"I welcomed him to welcome himself and find that part of his life. What horrifies me is that there are parents who so disapprove, who are so brainwashed to think that this is something out of the Bible or ungodly or against nature," Field continued.
"It's not against nature if nature has actually done this. Sam was always Sam, this wonderful human that he is, from the time he was born. Some people actually shut their children out of the house when they're young, they're teenagers - they're having a hard enough time to be teenagers and own any part of sexuality. I'm still trying to figure it out!," she said.