This should be obvious: when you get something for free, you don't value it.

A 3 year #UBI study shows that people that received $1,000 / month for 3 years became poorer by $1,500 annually. They worked less and used the time for leasure activities.

If everyone gets UBI and works less, where will the money for UBI come from?

https://www.zerohedge.com/political/largest-study-ever-ubi-was-just-conducted-and