Having 1 car

If you’re a SAHM/stay at home wife or married in general and have one car, how does having one car work for you and your partner? I had a car before meeting my partner and now I stay home so at this point it wouldn’t really make sense or matter if we got a second car since we have one and it’s fairly new with no issues. Once we have kids tho would it make more sense to get a second car or have you made it work with only having one? The only reason I’m thinking having 2 cars is better at some point down the road is in case of an emergency