It's definitely a good move, but certainly not a slam dunk transition, just because singles skaters can land jumps. Ask pairs ladies like Katie McBeath and Audrey Shin about the difference between landing jumps as a singles skater and landing jumps in unison with a partner. Plus, learning all the other difficult pairs elements and becoming comfortable skating with a partner. Despite the challenges ahead, I'm sure Starr will make a fine pairs skater. She has the grit, hard work ethic, and fierce determination that it takes.
Other pairs ladies who transitioned from singles include Deanna Stellato (famously after a 17-year break); Gabby Izzo; Meagan Duhamel; et al. Ashley Cain (recently engaged per her IG) was taught by her parents to skate pairs first, and then she learned singles and competed in both disciplines off-and-on, prior to solely devoting herself to a pairs career with Timothy LeDuc. Both Luke Wang and Olivia Flores were junior singles skaters before they partnered. Both continued to compete in singles prior to fully concentrating on pairs.
Sonia Baram of the U.S. was also a wonderful pairs skater who competed singles simultaneously. Sonia was very good on jumps and throws. She won the 2023 Junior Worlds Pairs championship with former partner, Daniel Tioutmentsev, who retired to pursue a career in aerospace engineering. Sonia had continued to compete in junior women's singles, but I'm not sure she is currently skating. It would have been nice to see her develop in pairs with a new partner.
ETA:
Skating so well after deciding that this is her last season, is a great way for Starr Andrews to say goodbye to her singles career, IMO. Starr has achieved great performances before as a singles skater. How she competed this past weekend is not an anomaly. It's a wonderful showing by Starr and I hope she will shine similarly at 2026 U.S. Nationals. No matter what, Starr deserves all the flowers and praise she is receiving.
There will be no lack of talented U.S. singles ladies on the rise after the expected retirements of Glenn, Tennell, et al., post-Olympics.