After adjectives, pronouns and nouns til is added before the infinitive market at. I unfortunately can't find any reference material for this, but it's just the pattern I've noticed and seems to be a good rule of thumb to follow
The "til" is part of the main clause. The expression is: at være klar til [noget/at]. That means it works both with a noun and an infinitive clause. E.g. "Jeg er klar til et forhold", "jeg er klar til at lære dansk". So we must keep the "til" as it completes the expression in the main clause.
Starting the daily danish lessons like this? Talk about a dramatic start!
why did I instantly think of the Black Veil Brides song 'In the End' even though its im not afraid to die