Answer: 1).it is likely because virus infection is more possible
2).So preparing food at a single place is more hygienic to reduce virus infection , cost and disease spread
3).preparing food in more hygienic environment
Explanation:
The bottleneck effect happens when the size of a population is dramatically reduced in some random event, like a natural disaster. The surviving members of the population didn't do anything special to survive, they were just lucky—it was just chance
So preparing food two places might cause virus infection leading to decrease of population.
So preparing food at a single place is more hygienic to reduce virus infection , cost and disease spread.
To prevent bottle neck from forming, one have to make sure to prevent pandemic or outbreak of strong virus by preparing food in more hygienic environment
