Once you have several quotes, you can compare the costs to help guide your budget planning. According to the 2015/16 HIA Kitchen and Bathrooms survey, the average cost of a complete bathroom renovation in 2015 was on average $17,779.
choose which parent to live with - at age 16 a young person can usually decide which parent to live with if their parents are separated, and decide whether/when to visit the other parent; choose to leave home - at age 16 a young person can leave home without their parents' consent
Using this, one can infer that the ideal age to leave home if one is not leaving for the purposes of schooling is somewhere on the high end of this range, perhaps 23-25. However, for those children who leave to go to school, 18-19 seems to be the preferred and successful age for leaving home. Marriage in the United States is not as large of a pathway to leaving the home as it is in other countries around the world.