Will talk more.

1, convenient: you don't have to go out to buy it, and you usually use a meal card at school, which is cleaner.

2. Don't worry: Generally, schools have certain food quality inspections, such as oil and meat. It is better to eat at school.

3. Hygiene: Unlike the dusty place outside, people in the canteen will also have health certificates, and they will still have masks and uniforms when they go to work, which is better for hygiene.

The downside may be that it is not delicious, it may be tasteless, and it is not as cheap as the vendors outside, but it is still cheaper than the shops outside.