Mikhail,
2 things. First it’s safe to say most people who get into this career don’t dream of being a flight instructor. That said, there really is no better way to hone your skills.
Second, do well in the program and ATP will offer you a position. If you don’t, well that’s on you!
Adam
I would strongly encourage you to instruct. There is no better way to improve your skills and if you have your CFI ratings, you have options to either instruct, or find some low time flying gig. If you do not have your CFIs, you are very limited by the number of open positions out there.
Chris
Mikhail,
There are so many pros to building flight time as an instructor that you may not experience elsewhere. Vice versa, if you flew twin-turbine to build time, that is an experience in itself; however, I’m a fan of the CFI time building. I don’t think you can say you actually have “mastered” the art of flying until you can teach that material successfully… and then some, you have more mastering of the art to do thereafter. As a pilot, we’re always learning, we’re always growing, and we adapt to the environment. No flight will ever be the same, again, no flight will ever be the same.
May I ask why you’re considering not getting the CFI, are you struggling in a phase, or just listening to the mixed emotions of CFI Academy?
Brady
Mikhail,
I will say flight instructing wasn’t my favorite thing but I’m really glad I did it. I learned so much and continued to apply the knowledge I gained throughout my 121 career. I would highly encourage trying CFI school when the time comes. If you really feel like you don’t have the desire or aptitude to be a safe and confident CFI, then opt out.
Hannah
I think my favorite part was “more right rudder…” 
Brady