Log off vs Switch User - Microsoft Community

as educator instructs @ elementary level students in grades k-5, have suggestion regarding placement of switch user , log off.

in school setting have multitude of students logging in , logging out of computer in single day.  due placement of log off, kindergarten , 1st graders frequent offenders in selecting switch user instead of log off.  their small motor skills still developing.  they tend move mice while clicking or don't have proper placement before clicking.  it constant challenge me.

is there rhyme or reason why switch user listed first instead of log off?  if not, possible make log off first choice @ top?  

thank you

i give them prominent desktop shortcut logoff process. needs invoke command:

shutdown  /l  /t 3

Windows / Windows 7 / Ease of access