My boyfriend has a newly found interest in becoming a tech. I am researching the industry for him.

Can anyone tell me what is Step 1?
Whats the best advise from all the professionalS out there?How should he approach certification, schooling, exam, employment?Is RETA the source?

Any words of wisdom would be greatly apprecciated.
As he is looking to earn more $ for a better quality of life for himself and his family.