When to change strings is an age-old question with no clear answer, and one that I still field regularly from repair clients.
Can a 12-gauge string cause the neck of a guitar to bend over time
How Often Should You Change Guitar Strings?
Electric Guitar String Gauge: What Should You Use? - Andertons Blog
How Long Should a Guitar Last You? - Breakthrough Guitar
7 Signs that you need your guitar restrung
Maury's Blog - Maury's Music
Flappy B strings, tight D strings and the switch to progressive
The Structure of the Acoustic Guitar:The rule of strings and
Guitars for Kids - According to age and height – t.blog Guitares
7 Signs You Need to Change Your Strings - Strings Direct
5 Signs It's Time to Change Your Guitar Strings – Ernie Ball Blog
Guitar - Wikipedia