I used windows prior to Ubuntu. In windows when I merged folders it would give me a warning and ask my if I wanted to merge the folders, In ubuntu it just merges, the merging works fine but I would like to see some kind of dialogue verifying that I want to merge folders. Right now I only get get a warning when I overwrite a file. I am using Ubuntu 12.04 and nemo as my file manager.
Nemo is not the default file manager in Ubuntu. Nautilus is. And if you use Nautilus, you will receive a warning in this sense:
Because of situations like this Nemo is not a default file manager in Ubuntu.