Infants roll, sit and walk all in about a year. They do this by moving their bodies. Time spent confined in infant gear gets in the way.
If you are curious about what to do with baby at home, take a look at the book Retro Baby by Anne Zachry, PhD. She’s an occupational therapist with at-home play activities for you and baby along with recommendations on what gear is safe to use and how often.
Registering for baby gear? Baby walkers develop pushing muscles, not walking muscles. Pediatricians don’t recommend them. They can also be dangerous. Read more here. They are illegal in Canada. Really. Read about that here.