Getting old isn't as bad as people believe in terms of health, but isn't as good when it comes to lifestyle. While more than half of those under 65 think they will experience memory loss when they are older, only one-quarter of people 65 and older say they do so. Older people reported fewer instances than expected of problems such as serious illness, not being able to drive, being less sexually active or depressed.

On the other hand, older adults end up having less leisure time than expected. While 87 percent of those under 65 think they will have more time for hobbies and other interests in older age, only 65 percent of older people report having it.

 Hispanics are more likely to report problems in old age. About 35 percent of Hispanics 65 and older say they have a serious illness, compared with 20 percent of whites and 22 percent of blacks in the same age group. More older Hispanics reported being depressed, lonely or a burden to others than did whites and blacks. They also were less likely to do volunteer work or be involved in their communities.

 Younger people are more likely to embrace technology. About 75 percent of adults 18 to 30 went online daily, compared with 40 percent of those 65 to 74 and about 16 percent for people 75 and older. The age gap widened over cell phones and text messaging. About 6 percent of those 65 and older used a cell phone for most or all of their calls; 11 percent sent or received text messages. That's compared with 64 percent of adults under 30 for cell phone use and 87 percent for texting.

 Americans differ on when old age begins. On average, they say 68. People under age 30 believe it begins at 60, while those 65 and older push the threshold to 74. Of all those surveyed, most said they wanted to live to 89.

Pew interviewed 2,969 adults by cell phone or landline from Feb. 23 to March 23. The poll has a margin of error of plus or minus 2.6 percentage points. In cases where older persons were too ill or incapacitated, their adult children were interviewed. Pew also used surveys conducted by Gallup, CBS and The New York Times to identify trends since 1969.