I've always thought Target had a lot of younger workers, but we do have older TMs. Two guys I'm with back in Frozen/Dairy are 50+ at least, and my TL is 29 lol. There's about 1 cashier about 50 years old, then two in their 50's and onto 60s. The other two I know of are 60+ and probably 65+. One of them went to cosmetics and helps out around the floor or doing signing shifts. The other one looks to have severe back issues, she's severely hunched over and needs to walk with a cane. She's really nice though, I love talking to her, and all of them. I haven't talked to one of them... whom is new, only about 30 days in.
Other than that, I can't really recall any older workers. Everyone else is either 35 or under.
EDIT: Agh just remembered a GSTL I have is at least 50, another GSTL is in her 40s.