This is an age old issue. Many of the youth in India lead dual lives - one for family and the other for outside the house. Saving face in society and lack of openness with our parents forces us to lie to them about our whereabouts. I lived the same life as a teenager. You are right that children need to be more open to having relationships (multiple) and learning from those experiences before getting married to one person. Even sex is considered a sacred act that has to be dedicated to only one person. It is considered taboo to talk about it openly. Instead, it should be a more natural expression of an emotional connection formed between two people. Cultural expectations are so strong and ingrained that things will not change that easily. The hope is for future generations like you and me to break the cycles with our children.