Say you need to go work and it takes 15 minutes by car. By bike takes 30 minutes. Great, very doable if weather allows.
But wait, you need to drop off and pick up your kids for whom you could only find a daycare spot somewhere that isn't on you way to work. The shortest distance by bike forces you through the centre where other bike and school traffic means it takes another half hour on top of your journey. By car you could take a ring road so it only adds 7 minutes. (This road exists for bikes too, but since the difference in max speed with a bike it'd take even longer)
This is not even taking shopping into consideration. Or hobbies or visiting friends and family.
I'm all for reducing car usage and I try to do so when I can. But cars do have a purpose and free up a LOT of time for you to actually live your life with your family.