Sending docunents to the unis who given me an offer

So I’ve gotten a few offers from a few universities but they’re not my first or even second choice and they’re asking for document proof of a few things.
Does me sending these documents automatically make the uni assume I’ve accepted their offer?

nope i'm pretty sure only if u firm it insurance it you've accepted their offer?
they do that to check ur identity and visa stuff

What if they ask for proof of results