> If you would like more than this, you can go and get a job and hopefully earn more (have a better lifestyle) than staying at home not working.
Staying home and not working today is not actually an option in most places in the world. The reason is why this new model is called unconditional basic income. The current system called income support is conditional.
And market forces love the fact that its conditional, since it allows exploitation. If income support is for example conditional on the unemployed not having received a job offering, then the market can exploit this fact and offer people jobs for below income support (or what ever is minimum). Unemployed people can not say no, or they loose the government income support, and thus become forced to accept a slave job or loose all income.
unconditional basic income would eliminate this issue from the board, and increase wages for unattractive jobs.
Inflation should also not be effected by much. The total amount of money in society is still the same finite amount as before. There is no "extra money available", only a different form of distribution. There is a larger group with money to spend on products, which drives prices both up (more demand), but also down (more incentives for large scale production). It also makes money change hands more often, and is often attributed as the reason why a income support system do not actually drive prices or wages down.