While we have been waiting for Evernote to fix this easy problem, I have one solution for iPad and iPhone users. I use EverClip. It allows you to apply a range of formatting - including bold, italic, underlining - as well as adding line and paragraph breaks: https://appcenter.evernote.com/app/everclip-2/ipad
It's been well over four years since the last post on this issue and over six years since EN stated that it was working on a solution. Evernote developers, at the very least, please give us an update on this problem and some sort of hope of when it will be fixed. Just because users are no longer complaining, doesn't mean we're satisfied with your (lack of a) response. Make an effort, please.