Why only paypal payment ? not going to consider crypto ?
I think this is not valid or legal.
Also, it doesn't matter how safely op click on your ads it will get banned definitely from Google. Mostly Google analyse those all clicks just before payment or end of month. And don't think vpn will work for this.
This is indeed illegal/ against their TOS.
And...... It simply... doesn't work. No matter where the clicks are coming from. Take my word for it, if you have a site with relatively high clicks, (but no conversions, (aka people who actually buy products), adsense is going to place some flags.
Also, if you don't have continous traffic on your site, there is no way in hell this is going to work, and if you do have continous organic traffic, why the hell would you need this?