The cost of college, pregnancy or other expenses after age 18 were not factored in. The overall cost is a good deal higher than figures estimated in 1960 by the USDA's first Cost of Raising A Child report.
It's reasonable, but there are options. A garage door opener is anywhere from $75 and up for a single door and $120+ for the double.... Installation price depends on who does it. I think Sears and/or HD charges around $250+, but you have to buy the GDO from them... @_@ I'd say do it yourself. The contractor is out to make more money, guaranteed.
Garage Door Opener Costs. Installing a garage door opener will save you the inconvenience of leaving your car to operate the door. You will find that the cost to install an average garage door opener depends on the door size, accessories, quality of finish, and labor rate. In the following tables the Labor Cost figures are what the able DIY person should expect to save by performing the complete installation.