Everyone can get it wrong, I don’t think vee is saying that everyone thats seen a UFO cant be faulted.
However, what about such events such as the Socorro UFO which was witnessed by a policeman? The object came very very close to him.
The object I saw back in around 1990 was very low and big too. When you know it definitely isn’t a known aircraft, then its fair to say that its difficult to come to a conclusion that pleases the debunkers.
People love a full conclusion to most things, sadly, a definite conclusion cant always be given.