No. And if you don’t have real grey hair and a real walking impediment and the judge finds out, you’ll only make it worse for yourself.

…no? Why would the judge care if you were old when you were driving drunk?

Depends on the country, I’d say.

If you were charged based on sobriety tests and the arresting officer only cited your inability to walk and balance and there was no blood or breath analysis, you would have a solid chance with a competent lawyer.