Yes, and no. Life in Cuba, as in any Communist dictatorship, is slavery, and in most other cases, a child would belong with his parent, but no parent has a right to take his child from a free country, and bring him into a dictatorship. If the child's father had been from, say, France, it would have been proper to let the father bring his son back with him. Rather than submit, Cuban parents smuggled 14,000 children, unaccompanied, to the United States. In Cuba, the state alone controls all education.
Contrary influences are illegal.
After university studies, you must work for years in a job designated by the state. Absenteeism is illegal. Selling beef on the black market can get you 30 years in jail. Nine eggs and some rice and beans are supposed to last you a month. Toilet paper is unheard of.