According to a study, more than 70% of young parents with a monthly household income of over $20,000 are found to be "dual-income families". The working hours of Hong Kong people are generally too long, which makes it difficult for most dual-income parents to spare time to spend with their children, thus resulting in an imbalance between their work and family life. Many Hong Kong parents have to go to work and come home exhausted from work. Hong Kong people often say, "I am very busy". Full-time moms are busy, working moms are busy, fathers are busy, and children are even busier. Parents don't have time to spend with their children, so they have to leave them in the hands of their maids or elders. In some cases, due to financial pressure, both parents have to work in order to meet the expenses of the whole family. For those who can't afford to hire a foreign domestic helper, they will let their children attend homework tutorial classes or interest classes at school, and then go to homework tutorial classes at community centers, which is actually custodianship service, and then wait for their parents to pick them up and bring them home after work.