Are Accent Marks Necessary When Typing On An English Typewriter?

Sometimes you have to use an old fashioned English typewriter to type into another language. And they have accented letters we just don't have on an ordinary typewriters. Like á, é, í, ó, ú, ü, and ñ for example. Sometimes you substitute. Like I don't know if you know this. But the German letter ß can just be written as "ss" in English. Or it does look like a lowercase B. You could do a b and put a vertical line on it somehow. But that would look weird. " kind of looks like the thing on top of the ü. But what about the rest?

I know technically you're not supposed to leave out the accent marks when you type in English. But would anyone really care?