Why doesn't the military have jetpacks like the Bastille Day flier?

Several companies working on personal jetpacks, hoverboards, and jet bikes. There are some good reasons troops and civilians aren't routinely flying around just yet.

Check out this ridiculous flying jet board from France's Bastille Day parade - Tech

Inventor to cross English Channel on jet-powered hoverboard

The French Air Force Prepares for Bastille Day, 2020 - Second Line of Defense

SEE IT: 'Flying soldier' armed with rifle soars over Bastille Day parade in Paris – New York Daily News

SEE IT: 'Flying soldier' armed with rifle soars over Bastille Day parade in Paris – New York Daily News

SEE IT: 'Flying soldier' armed with rifle soars over Bastille Day parade in Paris – New York Daily News

Because I Told You So: 2012

Jet Suits: Transforming Emergency Response and Counterterrorism Efforts – International Defense Security & Technology

Jetpack Inventor Goes Zipping Between Royal Navy Boats In Open Water Tests

SEE IT: 'Flying soldier' armed with rifle soars over Bastille Day parade in Paris – New York Daily News

Jet Suits: Transforming Emergency Response and Counterterrorism Efforts – International Defense Security & Technology

Walkthrough - IGN

SEE IT: 'Flying soldier' armed with rifle soars over Bastille Day parade in Paris – New York Daily News