Half Dollars: Bank Or Customer Rolls?

No. You're coming to way to many assumptions and conclusions.

USSID18, Not sure what you mean. Regarding other coins, what I've seen in customer vs. bank rolls is exactly as I describe, no assumptions about it. And regarding half dollars, I am making a GUESS (far less pigheaded than an assumption) and based on facts, which I laid out. Do YOU regularly receive half dollars as change from stores?
And if you have some keener insights, how about sharing them instead of just scrutinizing?

what is a customer roll?

A customer roll is when a bank customer brings in coins in rolls they filled themselves. Bank rolls are rolls generally wrapped by machine.

Customer rolls:





Bank roll:

There is no hostility here. You Kawliga are either misunderstanding or just being mean to other members. Please be nicer to other members Kawliga.

Jeez, with an attitude like that you will probably never learn anything about coin collecting. People here try to help you, we can not help it if you choose to consider truthful information as attacking you. Lighten up, life is too short to constantly be miserable with yourself.!

Here's what a helpful, non-hostile reply would have been: "No, I actually have gotten customer rolls full of 40% silvers." --See how that would have given me information with no need to critique my post? Instead, critiquing was ALL he did. Yes he did say he's found the silvers in costomer rolls in a later reply, but mostly just defended calling my post assumptions and conclusions.
I have had some AWESOME help from people in this community which is why I stick around. But those gem replies are a lot like coin roll hunting; relatively rare among a bunch of duds and outright uglies. What's especially funny is when somebody posts a question and multiple people post multiple slapdash answers without any reasoning to back them up, almost as if they were randomly-generated from a coin vocabulary bot. And they state these answers boldly, not "I think", or "Could be." So like if the person posted a possible error coin, and the next three people just say " DDD"......"MD".....and "Die clash" (and yes many just use the abbreviations which the poster may have no idea what they mean). What I always wonder is, if 3 people firmly believe 3 different answers, why don't they debate each other about it? After all we are talking about facts with evidence, not political opinion or anything, and the OP would learn something by watching the debate. But no, time and time again I see these random, short, pointless answers. With luck, that gem member comes along and gives an answer you could learn something from.
Yes I'm new to coins. I've only been at it about three months but it's been an intense three months, because I don't pick up a new hobby lightly. My main interests have traditionally been in the natural world, and not that there isn't rudeness among those hobbyists too, but much rarer. When I imagine (say) a tropical fish forum, say a person explains why they think they were sold a same-sex pair instead of breeders, and they gave rationality why they believed that, I cannot even imagine someone just saying "No. You're making too many assumptions" and that's it. If they did, other members would check them on it, not tell the OP they have a bad attitude and don't want to learn. I mean, really?