Older adults (≈60+): Goal for six,000–8,000 steps/day; advantages plateau close to ~7,500 in a number of cohorts.
Youthful/middle-aged adults: Goal for 8,000–10,000 steps/day; additional advantage as much as ~10,000+ in some research.
Any baseline: Add 1,000 steps/day each 1–2 weeks to progress safely.
(Disclaimer: This isn't skilled medical recommendation. Normal schooling functions solely.)