What was the most significant way that shifting religious and cultural values affected people's everyday lives?

Religions and culture greatly effect people’s lives. For one, religion can make people avoid doing things. Some religions make it to where the follower can not eat meat and must be vegetarian. Switching culture also is a big thing. For this, I am going to use the example of Gypsy culture. In this culture, people get wed at a very young age and also have offspring at a young age. This may be different from different people’s view on the world.