What is the meaning of these words? I cannot preach with featherlight tongue, of the things I haven't lived. I lack the wisdom and experience, that only the years and life, can teach.

no puedes hablar  de un tema que nunca has vivido,tendrias que vivir esa experiencia para entenderlo

the legal limit for the drivers who can drive after consuming any amount of alcohol is 21 years.

explanation:

on november 1, 1996, a "zero tolerance law" was put into effect in the new york state.

according to this zero tolerance law, for people under the age of 21 years, it was illegal to purchase and possess alcohol or to drive after consuming any amount of it.

also, the alcohol involvement rate for the drivers under the age of 21 was roughly twice that of elderly drivers.