What English are you referring to? The variety [0] known as American English? Black American English? New Zealand English?
I don't speak Scots, but it looks like it has some notable differences, enough to be considered a dialect, but not enough to be considered a different language outright.
Also, the line between a "language" and a "dialect" isn't as clear cut as one might initially think, and it tends to involve politics. I recommend listening to this [2] episode of Lexicon Valley about it.
[0]: https://en.wikipedia.org/wiki/Variety_(linguistics)
[1]: https://en.wikipedia.org/wiki/Dialect
[2]: https://slate.com/podcasts/lexicon-valley/2019/08/john-mcwho...