You really shouldn't be making career decisions based on what some shit hole company wants you to do. If you want to work with Mastercam go learn it, if they don't want to put you in that position or pay you what it's worth move on. I don't know what your area looks like maybe you live in BFE and it's the only shop in 100 miles, but realistically every shop in the country is light on talent so there's lots of opportunities out there.
That being said learning how to use the CAM software doesn't absolve you from your duty to continue learning about manufacturing processes. A guy that knows the software but isn't an expert in machining practices is more useless than the other way around, I never teach someone about CAM that isn't already proficient in G code. So don't look at this as an easy way out.
As far as being shy, that's something I dealt with through the first 20 years or so of my life. You have to realize that opportunities don't come without asking for them. You have to do things to get out of your comfort zone. It gets easier as you go.
That being said learning how to use the CAM software doesn't absolve you from your duty to continue learning about manufacturing processes. A guy that knows the software but isn't an expert in machining practices is more useless than the other way around, I never teach someone about CAM that isn't already proficient in G code. So don't look at this as an easy way out.
As far as being shy, that's something I dealt with through the first 20 years or so of my life. You have to realize that opportunities don't come without asking for them. You have to do things to get out of your comfort zone. It gets easier as you go.