Interesting. Every job I’ve ever had paid biweekly as well. I’m in the USA. Sometimes even enormous hoops were jumped through in order to provide it on that schedule.
It also varies by profession and/or position in some countries. Managers and “professionals” on higher salaries will often be paid monthly, whereas “ordinary” employees would usually get paid weekly or bi-weekly. Personally, I think it’s a tacit acknowledgement that it’s much harder to budget for a whole month on lower rates of pay.
Wouldn’t it be easier to budget for a whole month on low pay, especially since bills are monthly.
Paycheck comes in -> Pay all bills for that month -> whatever is left you can spend that month.