I am 28 but would never consider myself too old for an internship, but only if the internship is in my best interests.

For one, I would consider an internship if that was the only way to get hired at a company that I know I would like to work at. Maybe the company has great individuals that I will get to work along side?

Secondly, I would start by networking and try to get a paid position first as a juinor dev. I might be in a different position in life then you though; ie: two children and a wife in school.