Fifty-four percent of adults age 65 or older are confident in their retirement preparedness, according to Charles Schwab’s latest quarterly retirement pulse survey. But only 26% of those between the ages of 18 and 34 share those feelings.

Across all age groups, the number of people with concerns about retirement is 39%.

“Planning for retirement can seem daunting no matter how young or old a person is, but it all starts with a practical plan than can help address and alleviate concerns and boost confidence,” said Carrie Schwab-Pomerantz, senior vice president at Charles Schwab. “We know from our survey findings that across all age groups, only 39% of people have actually crunched the numbers on retirement savings. So, while it is reassuring to see confidence levels relatively high, we know that there is some ground to make up in terms of people sitting down with a plan.”

Among working Baby Boomers, 53% have estimated how much they will need in retirement, and nearly 49% have done so with the help of a professional.

The survey also shows a heightened appreciation for the need to be prepared for retirement among older people, with 74% of Boomers saying saving for retirement was their No. 1 priority, while for 24%, planning a vacation was their No. 1 priority. Among those in the 18-34 age group, 44% have set a vacation as their priority.

Nonetheless, 37% of Boomers are worried about unexpected expenses in retirement, such as medical or healthcare costs, followed by 18% concerned about outliving their savings.