When knowledge of these minority languages will be completely useless if the speaker goes abroad. Even in their own countries only a tiny percentage of the population can speak them.

Why dedicate so much time and money to these when they could be learing a useful language like spanish, french etc?

Hi guys, I'm researching minority languages and would really like your opinions on what difficulties are faced when trying to revive a language such as Welsh or Gaelic Irish
Also, I would be really interested in your opinions on whether or not these languages should be revived/if it's any use learning these langauges