As an english speaking American, learning danish, I agree it is a little confusing, the zero versus Ø problem. but it is also confusing to see 0 and O written w

As an english speaking American, learning danish, I agree it is a little confusing, the zero versus Ø problem. but it is also confusing to see 0 and O written when the zero has no slash. I think maybe our zero needs a less ambiguous distinguishing feature. I can easily discern 0 and Ø but I think it may be that I am so used to seeing 0 with a slash.