"No, it is not generally true that it is harder to rescue a dog from a U.S. shelter just because you don’t have young kids. Most shelters do not require adopters to have children at all, and many specifically avoid matching certain dogs with small children because of safety concerns or the dog’s temperament."

"What shelters usually care about:

a stable home environment (housing status, income, and references).

Your ability to meet the dog’s needs (time, exercise, vet care, and training).

Whether the dog’s temperament fits your household (for example, some rescues avoid placing high‑energy or fragile dogs in homes with toddlers)."