Reason 1- work and school 

Reason 2 - less stress

Reason 3 - more fun with friends 

if your assessment is on Monday, Monday is on a weekend you have a whole twenty four more hours. so you're probably going to finish in time. and for parents do you ever feel rushed on a Monday to get groceries. But  Monday you're off on Monday so you can run errands in peace.

Also if you’re at your friends house on Sunday you’re probably gonna need to run home or bike, drive or walk if you're a daredevil. then you’re running through the house there's so much stress you don’t know what your snack Is going to be. Then when you finally, Get all your stuff ready then you forget something. I swear it always happens. I hate it and you probably do too. 

And also if you really want to spend time with your family. On a Monday you can't because you have school and you’re probably thinking do it after but you have CHORES i swear you always have the most CHORES on Monday. Then you have to wait like on till you're off at school on Friday.  If Monday is a weekend then you’ll have Saturday and Sunday to spend with your family. 

 In conclusion, I think Monday should be a part of the weekend. Having Monday on a weekend allows people to have more time to get things done. And if Monday is on a weekend There is less stress on Sunday because there is no school on Monday. And you have more time with your family and friends. See now you won’t be in such a rush. see don’t you want to have Monday on a weekend now won’t it be nice now that I explained it to you.