I am considering converting a client to Salesforce DX to take advantage of source-driven development and advanced tooling. I read that enabling the Dev Hub in a production org has no effect on that production org from a user experience perspective.
However, in the process of enabling the Dev Hub, I was asked to Enable Packing 2. I've read about 2GP for the last hour and it's not a trivial jump (for me, at least) to go from Change Sets / Ant-based Migration Tool to 2GP. So if it's more than I have to time to bite off at this moment, if I enable 2GP can I still use traditional development methods (ForceCode / Force.com IDE v1), Change Sets, and Salesforce Migration Tool? Or do these tools become disabled if I enable Dev Hub and 2GP?