The links below are all from Church approved sources that show the way in which children, youth and young adults are taught doctrine and grow up believing that a temple marriage is the only way to true happiness, virtue, love and peace in the family.
Lesson 15: Temple Marriage, ”
Young Women Manual 2, 54 (age group is 13-17)LDS Ensign magazine - Teaching Children about Temple Marriage LDS New Era magazine - Special Issue, Dating & Temple Marriage LDS The Friend magazine - The Flower GirlsLDS The Friend magazine - Sharing Time, a place of love and beauty LDS The Friend magazine - Sharing Time, the temple is a happy place LDS The Friend magazine - Friend to Friend, Fiction: Samuel's Scriptures
The following article discusses suggestions from LDS members on how to ease hurt feelings when parents cannot attend the temple wedding of children. LDS Ensign Magazine - Questions and Answers
The following links are to online blogs and websites that discuss issues around civil and LDS temple marriage.
Arizona Republic Non-Mormonfamily not allowed to attend son's wedding.Times & Seasons | Waiting Outside the Temple Exmo Radio Show features petition coordinators Jean & Michelle discussing the issues.Mormon Matters discusses the Temple Wedding PetitionCivil Marriage vs. Temple Marriage Temple Marriage and the in-laws Feminist Mormon Housewives Non-Members at the Wedding In The Shadow of the Temple Documentary What to expect at a Mormon Temple Wedding Planning an LDS Temple Wedding Times and Seasons - Temple Marriage Policy From Wikipedia - Temple Sealing Salt Lake City Examiner - Temple Marriage Policy