We should talk more about James, Sirius and Peter becoming Animagi to be by Remus side on the full moons.
As far as we know, there was little research about werewolves, and most of it was about how to kill them or the dangerous beasts they were. So, probably, the fact that they didn't hurt animals/animagi was not public knowledge, and difficult to find. (Besides, it was probably not 100% verified that it would work).
This means, James, Sirius and Peter had to do real research to discover it. They had to be looking for a way to be with Remus/understand him better/help him and the research had to be thorough to find out a way to be near a werewolf without them hurting you.
Now, we should also remember that the Animagi spell was high-level and very dangerous. We see very few characters being Animagi in the HP series, and they are presentes as very talented wizards. James, Sirius and Peter did it as teenagers.
Of course, they were reckless and find it somehow funny (remember that Remus said they were the best years of his life, so he enjoyed it too—even if he couldn't remember those nights, thing that isn't very clear in the text tbh.), but that doesn't negate the fact that they cared enough to, once again, do the research. Because being reckless and stupid could also mean trying to see Remus-Moony as humans, or flying above the Forbbiden Forest, or whatever three reckless teenagers could have thought of. But they really wanted to find a way to be by his side, with their friend.
All of this when they had been taught, for sure, that werewolves were monsters, untrustworthy, and not worthy at all. But they loved Remus to the point they dismissed all of that, because they saw REMUS LUPIN, their friend, not just a werewolf.
They were stupid and reckles, but it takes deep care to be so stupid and reckles just to help a friend, when the whole word is telling you that you should hate him and be afraid of him.
The Marauders friendship is complex, with some plot-holes, and with highs and lows, but they did care about each other, and denying that is denying a vital part of the story.













