Proper Case T-SQL

CREATE FUNCTION dbo.udfProperCase
(
    @Input as varchar(8000)
)
RETURNS varchar(8000)
AS
BEGIN   
    DECLARE @Reset bit,
            @Proper varchar(8000),
            @Counter int,
            @FirstChar char(1)
               
    SELECT @Reset = 1, @Counter = 1, @Proper = ''
    
    WHILE (@Counter <= LEN(@Input))
    BEGIN
        SELECT  @FirstChar = SUBSTRING(@Input, @Counter, 1),
                @Proper = @Proper + CASE WHEN @Reset = 1 THEN UPPER(@FirstChar) ELSE LOWER(@FirstChar) END,
                @Reset = CASE WHEN @FirstChar LIKE '[a-zA-Z]' THEN 0 ELSE 1 END,
                @Counter = @Counter + 1
    END
    
    SELECT @Proper = REPLACE(REPLACE(REPLACE(LTRIM(RTRIM(@Proper)),'  ',' '+ CHAR(7)) , CHAR(7)+' ',''), CHAR(7),'')
    WHERE CHARINDEX('  ', @Proper) > 0 
    
    RETURN @Proper
    
END
GO

SELECT dbo.udfProperCase ('amol     RAJMANE')
GO