Answer 1

Ruby is one of the trending languages to learn for a better future. Only Ruby doesn't help you but for a better future , you have to learn the Ruby framework Ruby on Rails .
In the world, there is need of Ruby Developer and the job opportunities are good.

Read the Some of below given article for a better understanding

https://www.toptal.com/ruby-on-rails/after-two-decades-of-programming-i-use-rails
https://www.simplethread.com/what-is-so-great-about-ruby/
https://www.quora.com/Does-Ruby-programming-language-have-a-strong-future
https://medium.com/swlh/programming-languages-that-will-rule-the-game-in-2018-b58e38319974