To cross that bridge when you come to it is to deal with a problem only when it arrives. We will cross that bridge when you come to it.
It refuses to worry early, which is either wisdom or avoidance depending on the problem. It answers a what-if rather than a plan.
1phrasecross that bridge when you come to itTo deal with a problem only when it actually arrives.
“If they refuse we shall cross that bridge when you come to it.”
cross that bridge when you come to it is a phrase.
Practised in Idioms