Should parents continue to support all expenses after their child have on-campus job?

Our son will be headed to college in another year. We are able to pay for any school he would like to attend (including room and board). From his savings/summer work (if he ever gets a summer job) he will be expected to pay for “fun” stuff/personal expenses - $ for eating out, entertainment, spring break trips etc. We will continue to pay for his phone, car insurance and things like that. It is unlikely he would need a campus job unless he wants one. If, in the future, he lands a good internship we would support him for that, but that is way in the future.