The reason why preschool education industry is called youth meal is because it is usually a friendly career choice for young people. The meaning of the word "youth meal" refers to those occupations with good working conditions, relatively high wages and relatively easy work for young people. The reasons include:

1. Great demand: With people's emphasis on education, the demand for preschool education is also increasing year by year, so this industry has maintained relatively stable employment opportunities.

2. Low threshold: Generally, practitioners of preschool education only need to have relevant qualification certificates or certain academic qualifications. Compared with other professions that require high professional skills or need long-term training, preschool education is relatively easy to enter.

3. Relatively high salary: Compared with other industries, the salary level of preschool education industry is higher, and sometimes it can even surpass other peers.

4. Work is relatively easy: Compared with some occupations that need to sit in the office for a long time or do high-intensity manual labor, the work in the preschool education industry is relatively easy and interesting, especially the fun of working with young children, which attracts many young people.

However, it should be noted that there are also some shortcomings in the preschool education industry, such as long working hours and fierce competition in some areas. Every industry has its own characteristics and challenges, so when choosing a career, you need to consider your own interests, abilities and career development prospects.