system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do most countries limit work/travel visas to 30 years age or less?
gpt
I think the type of working holiday visas that allow people to stay for a year and work a while doing so, is usually restricted to age 18-30, because it is primarily intended for students who take a year abroad.

There tend to be plenty of other visa types that don't limit the age of the applicant like this.