Answer: Invasions by Barbarian tribes
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
Honestly just tradition. Reminds people of when they were younger. Holiday spirit
The major difference was the decision on actually becoming a knight. For people who could become knights (because their father was one), it was optional to become a knight. For a samuari, this option didn't come into play - they had to become one if their father was a samurai.
Answer:
teaching a profession
Explanation:
teaching is a profession so that human life can be continued and so that the upcoming generationcan be more advanced,easier and convenient.