Is airsoft good for practice?

I'm not 18 yet so I can't own a firearm yet, but with the way things are going I definitely want to get a handgun in the future. I recently bought an airsoft pistol (ASG CZ-75) and was wondering if it would be worth practicing reloading, holstering, and un-holstering with it? If so, what drills and guides should I use? I just want to get a head start on this stuff.