Microsoft Teams vs. Yammer - Should you be worried?

What I'm "worried" about is that there's so many tools for my users. Is that a bad thing for someone who likes tech? No. But probably 1/3 of my users are not techie in any stretch of the imagination. If I try to explain all the different areas (E-Mail, SharePoint, Groups, OneDrive, Teams, etc.) and what is better for this or that they'll just gloss over, and revert back to using what they are comfortable with, e-mail and network shares.

If I could request something here's what I would love to see come from Office 365. A person goes to a page to setup, say a Work Group. There they are given options, do they need to use documents? Lists? A calendar? Conversations? The user then picks and chooses what they need and it is created. If they want to add a feature later, great, they go add it. Having to decide which is best (Group vs. SharePoint vs Teams vs whatever) is a confusing mess for most users. They sometimes just have a simple idea of what they need and they just want to be able to go set it up and use it.