For an average internet user, two or even one proxy is enough. Most people need proxies for looking into web pages that are blocked in their country and for making sure that your initial IP address wouldn’t get frozen. For the first reason, VPN would be the easiest choice, as they do not require any complicated procedures — you will simply need to download one onto your device and turn it on whenever needed. For the second reason, rotating proxies are the perfect choice for advanced users, as they are constantly changing your IP address for every request or so. As for ordinary web consumers, VPN most probably would be enough.