According to Osho, samadhi is timeless and unrelated to the body’s age; the soul is ageless. Old age is no obstacle—often it helps, because life’s storms have quieted and attention can turn single-pointedly toward the Divine. Every stage has gifts and traps: youth has energy but is easily squandered; the wise use whatever condition they’re in to awaken.
Your age doesn’t matter for awakening; the quiet of old age can even make it easier to know who you really are.