> Most of the colleagues I've worked with only use "git add ." without checking first.

I mean I do too, then git status to check what went it, then unstage files that aren't supposed to be there, rewrite .gitignore to exclude them (usually), and finally commit. Tends to be faster than manually adding each file/path. Alternatively, I start out with `git add -p` (interactive) and go through that workflow.