"youth is wasted on the young" meaning in English

{
  "etymology_text": "Often attributed to George Bernard Shaw.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "youth is wasted on the young",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1983, Lawrence Bush, Bessie, Seaview/Putnam, page 56",
          "text": "Maybe someday the old and the young will live together and work together. But like they say, youth is wasted on the young, and I would also say that wisdom is wasted on the old.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The young fail to appreciate or make good use of what they experience."
      ],
      "id": "en-youth_is_wasted_on_the_young-en-phrase-XORU-uA-",
      "related": [
        {
          "word": "you can't put an old head on young shoulders"
        }
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "phrase",
          "word": "nuoruus menee hukkaan nuorissa"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "phrase",
          "word": "si jeunesse savait, si vieillesse pouvait"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "note": "not used in Polish",
          "sense": "phrase"
        },
        {
          "code": "ru",
          "english": "lit: if the youth were skillful, if the old age were able",
          "lang": "Russian",
          "roman": "jésli by mólodostʹ znála, jésli by stárostʹ moglá",
          "sense": "phrase",
          "word": "е́сли бы мо́лодость зна́ла, е́сли бы ста́рость могла́"
        }
      ],
      "wikipedia": [
        "George Bernard Shaw"
      ]
    }
  ],
  "word": "youth is wasted on the young"
}

{
  "etymology_text": "Often attributed to George Bernard Shaw.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "youth is wasted on the young",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "related": [
    {
      "word": "you can't put an old head on young shoulders"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1983, Lawrence Bush, Bessie, Seaview/Putnam, page 56",
          "text": "Maybe someday the old and the young will live together and work together. But like they say, youth is wasted on the young, and I would also say that wisdom is wasted on the old.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The young fail to appreciate or make good use of what they experience."
      ],
      "wikipedia": [
        "George Bernard Shaw"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "phrase",
      "word": "nuoruus menee hukkaan nuorissa"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "phrase",
      "word": "si jeunesse savait, si vieillesse pouvait"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "note": "not used in Polish",
      "sense": "phrase"
    },
    {
      "code": "ru",
      "english": "lit: if the youth were skillful, if the old age were able",
      "lang": "Russian",
      "roman": "jésli by mólodostʹ znála, jésli by stárostʹ moglá",
      "sense": "phrase",
      "word": "е́сли бы мо́лодость зна́ла, е́сли бы ста́рость могла́"
    }
  ],
  "word": "youth is wasted on the young"
}