We lived on a yishuv with a frum community, and we managed without a car. We walked to local places, took buses to the cities when we traveled, and occasionally borrowed or rented a car when we needed one for a longer time period.
We now live in Be’er Sheva, and there is also a frum community here. We still manage without a car; we are within walking distance to malls, shopping centers, and the train and bus stations. The bus system is excellent here. If we need to get out of town, for a wedding or to run errands, we rent a car.