My girl is 8 yrs old and once she turned two and was trusted to not touch anything... she has always had free roam of the house never an issue. Our Frenchie, yeah, not so much. He is too curious and likes to explore so he is crated when we are not home.
Go with your instinct and if he is good and trusted not to get into things then do not worry about the crate. you can always block him in a room using baby gates if necessary.