Si baby ko nauna nyang natutunan umupo at tumayo ng may gabay kesa gumapang. Kaya pag gumagapang sya nakakatawa kasi nakataas isang tuhod. At 9 months, naglalakad na sya mag-isa. So I guess, it's okay to skip a developmental milestone such as crawling since iba iba naman tlga sila ng development to begin with.