^ THIS! I don’t see how the situation is in any way more complicated. Real-world analogies can get pretty squirrelly but it would be quite literally like the following.

Man standing on the sidewalk outside a store yells into the store at the shopkeeper “hey there, can I have some free fish?”

Shopkeeper yells back “sure!” and tosses a fish to the man on the sidewalk.

Add more yelling back and forth for TLS handshake.

At this point, the man on the sidewalk can do whatever he wants with the fish. It was freely given.