The phrase "afraid to abandon" is correct and usable in written English.
It can be used when expressing fear or hesitation about leaving something or someone behind.
Example: "She was afraid to abandon her dreams, even when the odds were against her."
Alternatives: "hesitant to leave" or "reluctant to forsake".
He was afraid to abandon her while she was awake, lest she choke on her tears, or her cries attract a pack of wolves.
She had the quality of a bird among grasses, peering out in nervous excitement, eager for a mate but afraid to abandon her safety.
At each step she accumulated the experience she needed to take the next step, and she was never afraid to abandon a job to try something new.
"I'm not afraid to abandon ideas before completion: as they say, there is no point in trying to flog a dead horse!
What I love about him is that he's so prepped and immersed in the job, but then at a moment's notice he's not afraid to abandon any plan and try something else.
Samaras then had a header blocked by a defender on the line as Celtic pressed briefly for another goal but there was to be no storming finale, with Lennon's men content to protect their lead and Elfsborg afraid to abandon their defensive approach.
You don't think: Hmm, I'm feeling afraid that he's going to abandon me and I'll be alone again.
They did not want to abandon them because they were afraid of losing everything they have.
I am afraid many people, always still growing up, are willing to abandon their relationships for the sake of money, advantage or power.
I'm not afraid of people saying, it's a backdown, or a backflip, an agile government is prepared to abandon policies that don't work.
In 2008, many regulators were afraid to force bank investors to take losses, worrying that such an example might prompt them to abandon other banks and create unnecessary failures.
