What's the best way to get around with 2 small children?

Is it better to lease a car or use public transportation?
I have 2 small children ages 7 and 3. My husband is considering a job teaching there so I wonder how would I get out to grocery shop and entertain our boys?

How much does public transit cost? Can one purchase a weekly ticket?

Thank you in advance for feedback.

Bus Transport is quite cheap, taxi is moderately priced, so you have adequate public transportation to be used.  You can always rent a car to be flexible.  And if you are going to live here, you can buy a car quite cheaply here.