Parents will no longer have the right to withdraw children from lessons about relationships, sexuality and religion, the Welsh Government has confirmed.
Education Minister Kirsty Williams said the move would be tested next year before becoming statutory when the new curriculum is launched in 2022.
Parents are currently able to request their children do not take part in sex and religious education.
Parents have greeted the announcement with mixed opinions.
Sally Stephenson, a mother of a 13-year-old and 15-year-old from Cowbridge, Vale of Glamorgan, told BBC Radio Wales Breakfast with Claire Summers: “I just think it’s a really good idea to teach children about different religions and different relationships.
“I want them to understand that we are all different and there are people who lives different lives to