Some general questions about ipv6

So I have been considering getting into ipv6. I know only the very basics about it, but want to learn more.

I am curious about a couple things that are less technical and I guess more general philosophy about it...

So I understand that ipv6 is meant to have a huuuge number of addresses... Is it truly meant to be to the scale of every networked device to have its own unique IP? Is a large scale/long term goal a system where each thing gets an IP and then it basically stays that forever? (Like a MAC address or serial number)

I understand the drawbacks to having all your devices in a public IP space, and also the security issues of a never/rarely changing IP...

I know one of the current choke points of ipv4 is the limit of public addresses, so we have to use private reserved addresses and NAT.... Is ipv6 supposed to reduce/replace the need for NAT?

I see that there is a block of unique ipv6 private (unique local) addresses, but doesn't that kind of carry part of the problem over?

We still have to NAT to internal networks.. but shouldn't there be some way to get around NATing? Isn't that a crutch that was created because of the limited address space in ipv4?

Sorry if these questions are answered early on in the realm of learning about ipv6 but it's something I've been curious about.