Nepal, Sept. 21 -- August last year, Bangladesh saw a countrywide wave of young people-mostly students-flood the streets, chanting for reform, justice and a future that did not feel stolen. It was spontaneous and emotional yet powerful enough to topple a government led by Sheikh Hasina for 16 years.

Today, Nepal stands in a strikingly similar place. Its youth, angry at corruption and hopeless about jobs, turned protests into a mass uprising that forced Prime Minister KP Sharma Oli out of power. An interim government has since taken charge, with elections promised within six months.

For many, this feels like the dawn of a new chapter. But as a Bangladeshi, watching from across the border, I cannot help but offer a note of caution. In our...