Let me ask you some:
Is it immoral to go to your AA meeting that has free coffee and walk out with a dozen new Kcups in your pocket? I don’t know, I wouldn’t do it, but I’d have to ask the AA meeting what their thoughts on that are. If the meeting was advertised as “come to our meeting, even if it’s just for the free coffee, you’re welcome here,” then no, probably not.
Is it wrong to go grocery shopping and buy $100 worth of groceries but not pay for the apple you ate while in the produce department? Yes, it’s wrong, because it’s a violation of the rules of the establishment, and also against the law. There are places that provide free snacks while shopping. If the apple came from there, then no, it’s not wrong.
If you were an athiest, would you walk into a church right at the moment the services were over just so you could snag a couple of free donuts? Would I? No, but the church I attended as a child welcomed these kinds of visitors. They just want people to come in the doors and feel loved. Again, I’d defer to the establishment on their feelings. Most churches I’ve been affiliated with are fine with offering treats to anyone who is willing to come through the doors, even if they don’t stay. But if the church asks a person to not do this, and they do, then they are trespassing and that’s against the law.
If you saw a woman returning a cart to the cart stall at the grocery store at the end of her shopping, and she forgot an item on the bottom shelf of the cart, would you wait until she drives away and snag the free item? Nope, I would try to get her attention that she had left it, and I would let the store know. But I don’t think this situation relates to Amazon subscriptions, either. I think this is a violation of the unspoken rules of common decency toward other human beings, but I don’t think people who do this are good people.
Do you return shopping carts to shopping cart stalls in the parking lot? Yes, but once when I had two small children by myself and it was pouring and lightning, I didn’t. I felt terrible about it, but I hope it’s forgivable.
Is it immoral to regularly steal office supplies from work for your kid to use at school? Yep. This is a violation of the rules of my workplace.
Is it immoral to steal flatware from a cafeteria? Like, take a plastic knife and fork back to my desk to eat later, or take several of them for personal use later? Depends. I have taken a handful of forks up to my desk before because I knew I would be eating food at work and didn’t want to make the trek downstairs again. They’re offered for use at work, so that’s not unethical. I would not take them home for personal use, no. Because that is a violation of the rules of my workplace.
Is it immoral to pay for a movie ticket but stay and watch 2 movies? Yes, this is a violation of the rules of the establishment, unless it’s marketed as an “all you can watch” day or something.
Is it immoral to pay 50 cents play skeeball that offers redemption tickets that can be turned in for prizes, but decide that heck, I’ll just keep 4 wooden balls that are worth way more than 50 cents? Yes, because this is a violation of the rules of the establishment, and likely also against the law.
Is it immoral for 4 people to go to a restaurant and let 1 person order all-you-can-eat chicken wings and the other 3 order just water and then they all eat as many chicken wings as they can off 1 plate? Yes, because this is a violation of the terms and conditions of the deal.