I posted a similar question here a while ago:
https://forum.inaturalist.org/t/my-observations/45602/35
The answer was a pretty resounding “those should be captive/casual”.
The point made was that an iNat observation documents an interaction between an observer and an organism, and at the time the observer (you) observed the organism, it was not wild. I had a similar situation when I uploaded my insect collection- I personally collected 99+% of my specimens in the wild, but I have a handful of insects that other people found and gave to me, and the conclusion was that I should either stop uploading those particular ones or else mark them as “captive”.
I personally agree that from a data standpoint, “who” physically collected the specimen from the wild is fairly unimportant- what matters is that the organism was found alive at location X at time Y, and whether I personally picked it up or my mother picked it up and gave it to me the next day doesn’t matter. But iNat is meant as a nature-engagement platform first, and a data source second, so even though no researcher cares whether I picked the bug up myself or not, iNat’s guidelines do care.
The best argument I can come up with for these to be “wild” is that iNat encourages posting trail cam photos, and the observer may have been 50 miles away from the trail cam at the time it went off and took a photo. So arguably the person catching the bug and giving it to you is like a trail cam- they’re a means by which you recorded the organism’s presence, despite you not being present at the time and place where the “observation” happened. It’s not a perfect analogy, but it does illustrate that the “you have to be present at the time and place of the observation for it to be yours” argument does have exceptions.
The best argument against these being wild is that if you can post things other people found and just say when and where they found them, then iNat could just turn into people walking into a university collection room and posting 100,000 observations of dead specimens from the 1800s and copying down the data labels to get the location/date, which is not iNat’s mission.
I’d say in the end, posting a few observations like this isn’t going to get you in trouble (I’ve done it in the past, but very sparingly), but it’s not technically something that’s encouraged.