As above then there are limits, and memory can very easily be tricked and with the rise of photographs and home video can be augmented/replicated/supplemented (as a simple test chances are most photos would be taken by adults at adult heights, what then is your perspective on such things and does it match a child's height?).
For whatever reason I have a pretty hot memory* out of the box, especially for spacial and conversation, and it started really early (as in my dad thought I had learned to read ridiculously young but in fact had memorised the book and corresponding page turnings/timings, caught me out by fake turning a page or double turning a page).
So yeah I have various snippets going to places, speaking to people, meeting people. Can redraw what I reckon to be fairly dimensionally accurate floor plans for some places I used to visit often but have not been to since I was maybe 4 (I recall the same people building their new house afterwards and going there).
Some kind of consistent memory is a few years after that, maybe from around 6 but was getting better throughout that.
This has led to plenty of "I am shocked you remember that" and me describing room layouts and contents of things I saw young, with some parties involved dying a year or so later, that nobody would have a photo of (or if they did it would be a shot of a person in a chair and not a wide angle of the room).
*I can't said eidetic, which I am somewhat thankful for as that seems like a horrible trait to have, but pretty close for many things and even more so if I am interested in the subject at hand (I used to quite like going to car boot sales, can't remember whatever household tat some people were flogging but can remember months of toolboxes down to what places on their tables it was all stored from the tool sellers even if it has been over a year since things shut down). I suck at remembering names though. Can boost if further with memory tricks too.
