Right. But then you've got a very large incentive against the kind of travel that young people routinely do.

Most of my family and friends have taken 3-4 month trips abroad, very formative. I expect many of them would have stayed home if they lost the income.

If they want to travel more, they can work to get the extra income required to do so above/beyond the basic income.

Which would act as an incentive for them to work.

How so? They wouldn't be expecting any income at all if they only had a job, it would be even worse.

Of course, you'd be eligible again on return.