1. Living habits: Parents were born in different years. They may be more frugal, pay more attention to economy and moderation, and will not waste money at will.
2. Quality of life: Parents may have experienced difficult times when growing up, such as war and political turmoil. These experiences make them cherish their present life more and will not waste resources and money.
3. Education level: Parents with high education level are more likely to master the basic knowledge and skills of financial management, thus managing family finances more rationally.
4. Stable income: In the past, parents' income sources were generally stable, such as civil servants and enterprise employees. These occupations usually have higher salaries and benefits and are more stable.
It should be noted that the above are only possible reasons. The specific situation may vary from person to person, and it is also related to the economic situation and the background of the times to some extent.