I really like Benno Rice's talk "The Tragedy of systemd" about accepting change. I had resisted systemd only because I didn't need anything different than inet.d for what I was doing. This was a mistake and one I wish I had rectified sooner. I was missing out on taking advantage of all the other great services systemd offered. Had I switched earlier I would have enjoyed the slow, methodical accrual of a deeper knowledge and practical experience.
The link above is to a point near the end of the talk to the "Contempt isn't cool" slide. Accepting change requires to accept ones own limitations, biases, and blindspots. Do this respectfully as others have done it with you. Contempt is a destructiveness that you never want to bring into your team.
