Sorry, But R2-D2 and BB-8 Wouldn't Be Too Useful In Real Life

A new study highlights the problems with the astromech tech in Star Wars, although the beeping communication might be more useful than it seems.
A new study highlights the impossibilities in astromech technologies. 

Sphero's awesome R2-D2 robot does the one thing no other's done

Star Wars Smart App Enabled R2-D2 Remote Control Robot

R2-d2 vs Bb-8: Who Will Win the Battle of the Bots?, R2 D2

Bitty Boomers Star Wars: R2-D2 - Mini Bluetooth

Disney - R2-D2 Elite Series Die Cast Action Figure - 4

Star Wars 94254 R2-D2 Interactive Astromech Droid

Sphero R2-D2 review. Sorry BB-8, you've been beaten by an old R2

R2-D2 revealed!

Whose your Droid? : r/StarWars

Kenny Baker, actor behind R2-D2, dies : r/StarWars

STAR WARS - Hero Droid BB-8 - Fully Interactive Droid