Yes, if a person were to travel near the speed of light, they would indeed experience time dilation, which means that time would pass more slowly for them compared to observers at rest. This effect is a consequence of Einstein's theory of relativity.
According to the theory of special relativity, as an object approaches the speed of light, time dilation occurs. Time dilation means that clocks aboard the moving object (in this case, the person) would tick slower compared to clocks in a stationary frame of reference. As a result, the person traveling near the speed of light would experience time passing more slowly relative to an observer who is stationary.
This means that if the person were to embark on a journey near the speed of light and then return to Earth, they would indeed have aged less compared to the people who remained on Earth during that time. This phenomenon is often referred to as the "twin paradox," where one twin stays on Earth while the other travels at high speeds. The traveling twin would experience less time passing and would return younger than their Earth-bound twin.
It's important to note that for significant time dilation effects to occur, the person would need to travel at a substantial fraction of the speed of light, such as 99% or more. Additionally, the duration of the journey itself plays a role. For short journeys, the difference in aging would be negligible, but for longer journeys spanning years or decades in Earth's reference frame, the effects of time dilation would become more pronounced.