Harrop: Population-decline issue can be handled

The reason is that highly educated workers are more likely to delay starting a family until their 30s. About 53 percent of Bostonians aged 25 and older have at least a college degree, compared with just under 40 percent of Omahans in the same age group.

Needless to say, Boston and Omaha are both wonderful cities, each in its own way.

This counting also fails to consider land area. Older coastal cities have tight city limits, whereas the newer ones in the interior tend to have large land areas.

Omaha has about 500,000 people living in an area of about 145 square miles, while Boston’s 675,000 residents squeeze into 90 square miles. Thus, one can more easily live in a suburban-type setting — where many families prefer to raise kids — in a place like Omaha than in Boston.

Boston has huge far-flung suburbs outside the city limits that don’t make it into this kind of count.

The challenges

There are problems attached to the fact that we’re having fewer babies.

Many argue that falling birth rates combined with rising life expectancy will lead to economic crisis as fewer young people are available to support a growing numbers of retirees.

Another word for problem, however, is challenge.

One reason for higher life expectancies is that Americans are healthier at older ages. It’s undeniable that for many, 65 isn’t what it used to be.

Picturesque rural areas like Sevier County, Tenn., are now growing rapidly as older Americans, who once hiked there on vacation, now want to hike there in retirement, The Wall Street Journal reports.

Longtime locals may resent the heavier traffic, but robust younger retirees need relatively little health care, and they tend not to have kids in school. Thus, they go light on use of public services.

Retirement, too, is not what it used to be.

The older workforce — defined as Americans 65 and up — has nearly quadrupled since the mid-1980s, according to the Pew Research Center. Those 75 and older are the fastest-growing age group in the workforce. Their participation has more than quadrupled in size since 1964.

Of course, these numbers also reflect there being more older people. And many have not saved enough for a long retirement and must continue working. But many healthy “retirees” simply want to stay engaged.

Today’s older Americans tend to have higher educational levels than their parents. Their jobs are less likely to require heavy physical labor, which can wear out a body.

That brings us to “phased retirement,” a trend whereby a worker stays with the same employer but puts in fewer hours.

There’s the related phenomenon of “bridge jobs” — jobs in the same industries that involve a different kind of work or fewer hours. An example would be a manager moving into a sales position.

In the last century, the global population nearly quadrupled from 1.6 billion to 6 billion. Continuing that trend would have led to environmental catastrophe. Today’s flatlining birth rates should be far preferable.

They come with challenges, yes. But it can all be worked out.