I hate the garage in front of the house design.  It's ugly, IMO.

However, there is a reason for it.  The garage is put between the house and the street in order to shelter the living space from street noise.

Unfortunately, what it proclaims to the world is that "Cars Live Here!"  
The actual human-occupied portion appears increasingly secondary, little more than an add on in the back. An architectural nightmare.
The importance of the automobile in US culture cannot be overstated.
Well, in detached housing the alternatives are garages in front, or alleys in back.  I think in general I like alleys less ...
And garages are often huge today.  Three, four, six bays and more.  Craziness.  I know people who have two-car garages at the front of the thouse, and build another two or three bay garage in back.  

Personally, I'm fond of the "breezeway."  A little screened or windowed porch that connects the garage to the house.  You can sit out there in summer, and put the beer there to keep cold in winter.  :)

My parents' garage is in back of the house, connected to the kitchen.  But I think that's partly because of the association rules of the subdivision they live in.  You cannot leave your garage door open if it can be seen from the street.  So people turn the garage sideways and put it in the backyard.

Chris Alexander in "A Pattern Language" makes a strong case about doorways, transitions and entrances. No, the garage is there first and foremost because that is how people come into their home. It IS the front door. It's not there to block noise from the street. I'm one of those Mainers with a garage too useful to park a car in - in other words it's full of trash and treasure. My ex lives in one of those developments where cars have to sleep in the garage. That's her front door, an oil-stained concrete slab. I have to walk outside past the roses, peony and herbs. Sometimes in the rain.

My bike, OTOH, lives in the house, in the front entryway. Hers is hanging up with flat tires in the garage.

cfm

I thought the front door were the one intended for visitors. Seems lonely to have your garage as the front door.

Its quite common that a door closer to the kitchen is the most used door even if it isent the front door.

Cultural difference?