Advertisers will decide how much they are willing to pay and users will choose to watch or not. So it will be up to the market. It will be enough to watch more videos. Probably not enough to quit your job.
You can earn enough to watch more content! In addition, you can take Flixx and use it on other platforms for an equivalent value, e.g. you can buy a sword on a gaming platform, a subscription for listening music...
there must be some minimum of earning...
In this ecosystem, those who are really monetizing are authors of content. The incentive for users is getting credits for watching more content, and as they hold the wealth, demanding higher quality content. If you measured how much revenues every user is generating for YouTube, you would find that is about 10 to 20usd a year. So, in this context, if you would like to take your tokens away of the platform you can expect to earn usd20 per year. If you use your tokens on the platform and watch content and SHARE that content, you would be able to also earn tokens for doing that. The more you spend on content the more you can generate by distributing. This is game theory... The more you participate the more you can earn. But again, unless you create content you wont make a living out of this.