Earlier quoted context omitted.
It depends on how government would get the money for UBI. If it goes ahead and just prints more money then there will be rampant inflation, but if it redirects money from other programs, the prices of some goods may change, but there won't be inflation.
Then there’s the behavioral factor to consider. Will UBI truly relieve pressure and give people a hand up? Or will it result in a large swathe of the population dropping out of the labor force and accepting a life of poverty and marginalization? Could some UBI pushers actually see the latter as the true goal? Ask any Native American how empowering a UBI-esque system worked out for them. Not that I’m rejecting the ide…
Anecdotally, having grown up in and around various tribal communities, people will consistently replace work as a source of purpose with some other purpose of their own devising. Unfortunately, most of the time people will choose a purpose that is socially destructive in the absence of a default purpose that is socially beneficial. A consideration for designing a constructive UBI system is institutionalizing new sources of socially beneficial purpose that can be easily adopted by people that lose work as a purpose. Insufficient thought is put into this latter problem, I have seen little evidence that this will happen organically.