Fabregas, 23, believes Wilshere can only get better - given the right support.
"We are trying to help him and he is developing really well, but let's not put too much pressure on him," said Fabregas, who holds the record as Arsenal's youngest first-team player when aged 16 years 177 days in a League Cup tie against Rotherham during October 2003.
"Jack is just 18. He knows he was wrong, but sometimes these things happen.
"I remember being sent off at Everton for violent conduct against Tim Cahill when I was only 18. You learn from it."