Therapy was just one example. It could be physical therapy too. They aren’t just looking to get their bills paid, the real incentive is the pain and suffering. For example if they claim pain and suffering due to mental anguish (bird nightmares, afraid to walk outside, etc) its a stronger case if they have been in therapy for 2 years for it instead of just a few months. The longer you wait the more you can claim as damages.
My dad was in a car accident where the other driver sued for damages. The accident wasn’t his fault and even the police report stated that. Neither car was totaled and both probably had a few thousand worth of damage combined. Really a pretty minor accident. The guy had no insurance so my dad’s insurance company paid for his repairs and we thought that was the end of it. After a few years went by he got the paperwork for the lawsuit. The guy was suing for medical bills but also pain and suffering. He had bills from doctors, chiropractor, psychologist, etc. Aside from the bills he was suing for mental anguish caused by the multi-year loss of his ability to work, the loss of his ability to hold his child on his lap, the loss of his ability to “perform” for his wife and loss of sleep due to nightmares. Long story, short...my dad’s insurance company settled out of court and the guy got a payout of a few thousand plus bills. My dad wanted to go to court just on principle but the insurance company couldn’t be bothered.