> Unless you care about your phone working as a phone. 2G was discontinued years ago, 3G is rapidly being dropped by the carriers and how much longer before 4G

> Unless you care about your phone working as a phone. 2G was discontinued years ago, 3G is rapidly being dropped by the carriers and how much longer before 4G is discontinued? First 4g devices were released in 2012, in 2014 you could find sub 150€ 4G devices. If you bought the last 3G phone in 2015~ (there were still 3G phones after that, but nothing reasonable), 10 years of network support is still reasonably within reach.