Umm, first of all I don't see any need for you to be snarky with me. I am trying to help the OP and I have not stated anything that is incorrect. I think you need to read the preceding posts more carefully before jumping to such conclusions.
I did not state that the entire Photos recently deleted items are all deleted every 30 or so days. I specifically stated the behavior in the entire post which is partially quoted by you in the second quote above from me. I admittedly could have been even more explicit I guess but I should hope somebody is going to actually view the window where it is crystal clear anyway. I mean, they have to be there to delete anything permanently prior to its expiration or to check on what has or has not been deleted temporarily or otherwise. At that point it is entirely obvious each photo is on its own countdown. There was nothing inaccurate about anything I said. I was looking at the app to ensure my comments were correct as I wrote them in fact.
Again, reread my post and tell me where I said, "the album is emptied once a month." You will find I did not say that. I did not mention the word album at all. The new trash as I called it does in fact self-empty on a monthly timetable as nothing stays in there longer than a month or potentially up to 40 days according to Apple in a notice that was displayed at the top of that window when I first looked at it. I don't know what that 40 days is about but you'd have to ask Apple why that is. I just know the app told me so very clearly when I visited that window. I do know if that is a one time notice or if it is displayed anytime there are contents to view in the window as I have now permanently deleted its contents here. So maybe it does and maybe it doesn't but I do know it makes mention of up to 40 days the first time you see it because I saw it. I hope I got that clear enough for you.
The other humorous thing I note above is you are telling me about how I was presented with a list and I chose not to exercise an option. Then you seem to infer that I was too stupid to use a "big red button" to stop the process. Best of all you then tell me that using such buttons or quitting out works quite well and I should try these things sometimes. On top of it all, you inform me that if I was not aware of these options, I am not forced to use Photos and could ignore.
The above tells me you at that point in time did not seem to know I was not the OP and therefore that indicates you hadn't even read this short little thread entirely or at least fully comprehended what you read before making your condescending remarks to me.
Not to blow my own horn here but I wasn't born yesterday and I do have a long career behind me in software development that began with product support and wound up with me as a Senior Software Engineer who among other things oversaw the activities of a group of software test engineers. What is more, I earned my degree in computer science from a prestigious institution and graduated the program with multiple awards and a 4.0 GPA.
So you might pause to consider sometimes that you really don't know anything about people you address on the internet as a rule and it is wise to try and stay away from making assumptions about their experience and intellect, etc.
I am not angry with you but I just ask you to try to please be a little more considerate of others here. We're all answering people simply trying to be helpful. Even if someone seems to be wrong, there are nice ways to work with that.
When I said earlier that I wasn't paying enough attention, in the context of the discussion if you read it, it should have been clear I meant I missed that the OP actually thought deleting photos out of the Photos app would somehow also delete them out of the iPhotos app library which of course it does not. I think we have no argument there. I was just conceding that being late when I responded, I missed that important bit of information and then I did respond accordingly to explain the behavior of the app in deleting photos.
I guess I could worded my response more articulately than I did with greater clarity in terms of the individual timers on each deleted file until permanent deletion but I did not feel that was necessary. Since you did, all you had to do was add that little clarification nicely and good enough.
In any case, this is certainly answered now I'd say so hopefully the OP will understand what is going on with these two apps and be able to proceed accordingly to get the results they desire.
I just had a little laugh looking back here. I did actually state there is initially a 30 day countdown indicator beneath each photo. Did you read my response to lori_dileto prior to commenting which summarized the behavior? I know you quoted from it but how did you miss that part?