My LO jus started walking independently (but still a bit wobbly) at 15+ months.. my mil said he is slow .. I mean , 15 months started walking independently really is considered slow ?

there is no slow or fast. wth. every baby progress at their own pace. cannot compare one. every baby is different, just like every adult is different. I'll brush it off and says fast or slow does not matter. when they grow up, who cares at when do they start walking/crawling/eating? as long as they did walk, does it matter when?