DD stood up at six months, she had to be restrained while in the pram/buggy for a while, she had a habit to retract under the carpet, with only her head sticking out, for her first years,
she liked to get wet and stay wet, and took longer to toilet train then her brother, who was sensible to the discomfort
family habit of early milesstones, getting critised by controlling nurses for early achievements,
(even that makes socialising with parents outside family ...uhm, challenging irrelevant, esp the first years)