If writing text more than 4 hours / day is what you do for a living, and you have at least 10 more years left of doing that, not learning Vim is just lazy. Vim gives you back enough time to think about what you're writing.

Also, if you go cold turkey, you'll be productive in less than a month, and arrive at a good workflow that fits you in less than six months, flow that you will improve over the years in amazing ways.