As said, depends what industry you want to work in.

Add Aerospace to the Catia using list - some aerospace firms also use Pro-E, Unigraphics, SolidEdge etc. Some old school repair and mod specialists (Police helicopters etc) use AutoCAD still but the work is limited and the old hands just do the rounds.

Any industry is difficult to get into at the moment though, even if you did an Airbus accredited Catia course through TATA, Xype or CIMPA a company could pick from thousands of Catia Design Engineers already with 000000's hours using it.

My advice? Think long and hard as to why you want to learn, what industry you want to go into and take it from there.

Ben