minecarts that can be attached

This idea might be partially achievable by some players in Java, but I'm speaking as a Bedrock player, and in general, this feature I'm talking about would be revolutionary for several things. Multiple cars arranged like a train could be used for multiplayer, or to simulate a subway system, or even for minecarts with chests. The way to connect them would be with a single rope to tie two cars together, and a minecart could be tied twice, to make, who knows, trains of two, three, or even four. And to make it logical, the more mimecarts, the slower the train would be. That's my proposal. Maybe they won't listen to this proposal, maybe it's an AI that sees all this, maybe my proposal is rubbish, but it wouldn't hurt, would it? Not even as a version update, but as a detail that players have wanted perhaps since Minecarts existed.