How urgent do I need a lower control arm replacement?

Hi there! Sent my 2017 Ford Fusion (170k miles) to the shop and was told that lower control arms need to be replaced, and quoted $1,500 for parts and labor.

I’m going on a 4k miles road trip soon and will sell this car on August. Now I’m wondering how urgent this is if photos are enough? Could this end up killing me? I felt that it could end in a catastrophic failure, based on how the shop explained it to me.

Appreciate all your comments. Thank you!