Unfortunate that this isn't the default option for replying/forwarding emails. Most people are used to seeing the conversation thread in their email client. They don't "get it" when you instruct them to "click on the 3 dots to see previous message text"...assuming they can find the faint, tiny 3 dots.

Highly annoying.

I am also annoyed when I look to a received mail, which looks empty, until I have found the three dots. My eyesight is not good, and it would be more convinient to have the Text right away. It may be implemented as an option, which can be turned on and off, depending on the users preferences.