A mixed mexican can be Chicano. But term Chicano is normally used to refer to someone born in the United States to Mexican parents or grandparents and is considered a synonym of Mexican-American. A person who was born in Mexico and came to the United States as an adult would refer to him/herself as Mexican, not Chicano.
This is a bit of an odd question, but-- you can apprentince in construction, health care, and the culinary arts. The only I don't suppose you can apprentince in is athletics, as far as I know. I hope this helps somehow, but this really is an odd little question.
I’m not sure i understand this question