Having a car is good or not good?

I see many cars on the road today, perhaps less cars during the school holiday. Do you think is good to own a car?

I think with a car you can have freedom to go places that you prefer but of course you need to know the route to the places.

I need to find a suitable data plan for my phone, since I am stay at home mom. I can't afford expensive phone bill. My bro asked me why I didn't have any data on my phone.