There is a tremendous זלזול in Chol Hamoed especially in America where many people work. In Israel many places of work are closed and even those that are open ex[ect that many people take off.
Unfortunately, many people only see the Chol and not the Moed. In reality, Chol Hamoed is almost the same as Yom Tov, there is an issur melacha and it has a kedushas hayom. The issur melacha happens to have more heterim then Yom Tov but it is there. Chol Hamoed should not just be another day. You should dress nicely and not work. The only melacha permitted is לצורך המועד and דבר האבד.