Adult women may be able to buy Plan B without a prescription. But it will still be kept behind the counter so that any busybody pharmacist can lecture any adult woman on her behavior before he dispenses, or possibly refuses to dispense the morning after pill. The FDA still prefers that women under 18 become pregnant and carry the baby to term. As they might say:

If you wanted to go to heaven so much, maybe you should have thought about that before your uncle raped you.