If time travel were possible, it would depend on the specific nature of time travel and the rules governing it. There are various theories and concepts surrounding time travel, each with its own implications.
In some versions of time travel, such as the "fixed timeline" or "block universe" theories, events in the past have already occurred and cannot be changed. According to this view, if someone were to travel back in time, their presence would be part of the established history, and people from the present age would not be able to see them. Essentially, everything that has happened, including any time travel events, has already been accounted for within the timeline.
On the other hand, some theories propose a more flexible concept of time travel, such as the "multiple timelines" or "parallel universes" theory. In this view, traveling to the past could create a new timeline or branch of reality, separate from the original timeline. If this were the case, it's conceivable that people from the present age might encounter individuals who have traveled back in time in this alternate timeline.
It's important to note that time travel is currently purely speculative and falls within the realm of science fiction. While it is a fascinating concept explored in various books, movies, and theories, there is currently no scientific evidence or widely accepted framework that demonstrates the practicality or possibility of time travel. Therefore, any discussions about encountering time travelers from our present age or any other period should be treated as hypothetical and imaginative in nature.