Living Together Before Marriage
In conservative families, living together before marriage is frowned upon and basically forbidden. In really strict families, they may not give their support or attend the wedding under such circumstances. While traditions are important, one could argue that knowing how to live with someone before you marry them is equally important.
However, keeping your living situation with your significant other a secret from your family would be difficult, especially with them living just 45 minutes away. One couple was able to pull it off for a year and a half before they got married, and luckily their parents never found out.