Training a Parent Raised Chick

[LunaPhase]

My little Solo is a lap chicken. Yes, I left him with his mom up until today. He is actually a she, but he for ease since I mostly have roos. Does anyone have experience truck training a baby chick? Aside from following me or my dog around, I mean.

 

[50-45-1]

What..
How old is this chick?
and why remove it from its mother?