Why use elif and else over multiple if statements?

I was working through a Python problem sheet and answered the following question

You are driving a little too fast, and a police officer stops you. Write a function to return one of 3 possible results: "No ticket", "Small ticket", or "Big Ticket". If your speed is 60 or less, the result is "No Ticket". If speed is between 61 and 80 inclusive, the result is "Small Ticket". If speed is 81 or more, the result is "Big Ticket". Unless it is your birthday (encoded as a boolean value in the parameters of the function) -- on your birthday, your speed can be 5 higher in all cases.

def caught_speeding(speed, is_birthday):

    if is_birthday:
        speeding = speed - 5
    else:
        speeding = speed

    if speeding < 60:
        print("No ticket")
    if 60 < speeding <= 80:
        print("Small Ticket")
    if speeding > 80:
        print("Big Ticket")

The given answer however used elif and else clauses. Is there a reason that it is better to use elif and else clauses? Or is it just personal preference?

Thank you for the help!