Lander says her practice, Renaissance Benefit Advisors Group, thoroughly enjoys its independence.
However, if retirement expenses are reduced to 80% of average expenses, 82.1% are on track to not run short.
Fifty-three percent expect to become millionaires, TD Ameritrade found in a survey.
Only 2.7% discontinued contributions, according to the ICI.
Americans are confident DC plans will help them meet their retirement goals, ICI found.