Where statement in foreach loop, comparing dates - powershell

Question

Trying to import a list of users with Name, Email, Termination Date, Stop Date and first check if either stop date or termination date has passed.
Tried adding [datetime] and using get-date $user.'stop date' but without any luck.
It seems to work with the below code without the same issues though, or I get the same error, but it does check and write out that one of the values is greater:
$StopFolder = Get-ChildItem C:\test\123\*.csv |sort LastWriteTime -descending|select -first 1
$Stoplist = Import-Csv $StopFolder -delimiter ';'
$CurrentDate = Get-Date
foreach($Date in $Stoplist){
if($CurrentDate -eq (get-date $Date.'Stop Date')){write-host Equal}
if($CurrentDate -gt (get-date $Date.'Stop Date')){write-host Greater}
if($CurrentDate -lt (get-date $Date.'Stop Date')){write-host Less}}
But the same didn't seem to work for the below and can't really figure out why. I think I need to convert it to a date, but not sure why it's working in the above and not the below, nor how exactly to convert it if get-date doesn't work.
$StopFolder = Get-ChildItem C:\test\123\*.csv |sort LastWriteTime -descending|select -first 1
$Stoplist = Import-Csv $StopFolder -delimiter ';'
$CurrentDate = Get-Date
foreach($User in $Stoplist|where($_.'stop date' -lt $CurrentDate)){
try{
$Usermail = $User.'e-mail address'
$Username = get-aduser -Filter "EmailAddress -eq '$Usermail'" -properties Enabled
if($Username.enabled){
echo $Username 'still exists and is NOT disabled' >> C:\NotDisabled.txt
}
if($Username.enabled -eq $false){
echo $Username 'still exists and is disabled' >> C:\NotDeleted.txt
}
}
catch{continue}
}
Expected result is to have it only initiate the loop if the current users stop date is less than the current date. Currently nothing happens, removing the where part and the rest seems to run fine.
Any help is much appreciated.
Edit:
CSV dates are like this:
stop date
01-02-2023
21-09-2019
21-01-2019
01-01-2019
01-01-2019

Answer 1

Edit: the error was not just within the logic but a typo: | where needs curly braces > | where {} not parenthesis.
Create a date from 'stop date':
(get-date -date $_.'stop date')
in one line:
foreach($User in $Stoplist|where{(get-date -date $_.'stop date') -lt $CurrentDate}){...}
Here $Stoplist|where{(get-date -date $_.'stop date') -lt $CurrentDate} is one unit and could be encapsulated in brackets:
foreach($User in ($Stoplist|where{(get-date -date $_.'stop date') -lt $CurrentDate}) ){...}
But without brackets around $User in $Stoplist the pipe | only refers to the last object $Stoplist