Move to option in Classic view Library

Here's and excellent post by Joanne Klein  on why modern is better than classic. While she is focused on libraries, the same is also true for lists. I would also add that a huge factor for my users is the ability for any user to hide, show or rearrange columns without being required to save another new view. Note that some of the gaps she mentions at the end are currently being addressed by Microsoft.

https://joannecklein.com/2018/08/31/10-reasons-the-sharepoint-modern-library-experience-is-better/