I don't care about spreading the flu
Why don't you are about spreading the flu?
I don't care because me and my children will be fine
Even though you and your children may be fine if you catch the flu, think of the other people that you all interact with that may catch it from you. How would you feel if businesses around you had to start closing because their employees got sick because you went into the store while ill?
It will never happen since I'm rich and I can buy anything I want. I don't need to depend on businesses.
Think also about the people who will have to use those services too. You may have alternative ways to get things you need, but others are not as fortunate and need businesses to be open. Everyone needs to do their part to limit spreading diseases so everyone can remain healthy!