I walked at 8 months unaided but used to carry around my walker whilst sitting in it from 6 months
sonny started walking holding on & whilst in his walker at around 8 months but didn't walk unaided until 12 months (his 1st bday actually).
he did do it once 6 weeks prior to that but then decided it was too much bother so didn't do it again till his bday.
IMO they all go at their own pace & tbh it is more hassle once they are walking