Hi Pauline
This might depend upon a number of things ................ age, poverty, desertion, childbirth, illness etc..
Do the admission registers give a reason for admittance?
I know for certain that one of my ancestors (in the 1910s) went into the workhouse to have children and lied about her name and status - she was married and claimed not to be - just to get the limited care available!
Casalguidi