What are your options if you have an English A1 level?
For incredibly basic interactions, such as those you may have as a visitor in an English-speaking nation, an A1 level of English would be sufficient. For other academic or professional uses, an A1 level would not be sufficient.
The official CEFR rules state that someone with an English language proficiency of A1:
possess the ability to comprehend and employ simple sentences and words that are intended to satiate concrete demands.
able to ask and respond to queries concerning personal information such as where she lives, the people she knows, and the objects she owns.
can communicate with others in a straightforward manner so long as they speak clearly and slowly and are willing to assist.