Dang, they should've specified appraisal are for people only for that egg.
From the complaints here I now want a reincarnation manga where a child who remembers their past life midway is not molded by their past life (retain their child-like personality) and just think of it as bonus knowledge instead of foundation. Makes the whole "I was this old guy and now, I am still childish" more believable. A similar manga to that is
, great perspective for those stuck in the past by their memories and those who want to live in the present never letting it destroy what they have now instead.