Why Don’t NFL Teams Train Where They Play?

Why Don’t NFL Train at Home?

I can understand any team that has a dome like the Rams having issues playing at home. It is a possibility they can rent those facilities for concerts and other activities. But why don’t team practice where they play?

Here is part of an article from the Kansas City Star:

Chiefs chairman Clark Hunt said on Saturday that the club will decide whether to continue training camp at Missouri Western State University by the end of the calendar year.

Nineteen of the NFL’s 32 teams now train at their own facilities, and it’s a possibility the Chiefs will follow that trend in 2015.

Why not practice at Arrowhead Stadium? Why can’t the Bears practice at Soldier Field? Do the Bears own that facility?

Why rent a facility that is miles from home base?

It appears 13 teams do that.

Thoughts?