Totally agree. This has been one of the biggest reasons I've been having trouble transitioning to VS Code.
I know it's silly, but the design pattern is near ubiquitous in other editors (and other applications) it's really hard to go back to not having them.
I think it was a strange choice to not include tabs up to this point, but I'm glad they're finally coming around. Kudos to the VS Code team for listening to feedback.