Why Get a Driver's Licence in Zihua?

Over the years I have read numerous postings here about the “hows” of obtaining a Guerrero driver’s licence. Can someone help me understand the “whys” of getting one?

I understand that some permanent residents live in Mexico as their usual year-round residence. It makes sense that they would obtain a Mexican driver’s licence. It might be impractical to renew their non-Mexican licence.

I am a permanent resident who stays in Mexico for under 180 days each year and typically for 45-65 days at a time. Are there any potential benefits or liabilities for me to obtain a Guerrero driver’s licence”?

If there are any British Columbians with a Guerrero driver’s licence, how do you deal with BC’s prohibition on having more than one driver’s licence?

Please note than (sic) when you qualify for your new B.C. licence, you'll need to surrender your previous licence to ICBC. B.C. law requires that you only have one driver's licence.

https://www.icbc.com/driver-licensing/moving-bc/Pages/Moving-from-within-Canada.aspx#:~:text=Please%20note%20than%20when%20you,only%20have%20one%20...

I’m guessing some other Canadian provinces and US states have similar provisions.