None of those things should be illegal. It is really annoying to see how a leader class kills people of hunger and make everything illegal so that now everyone is a criminal for trying to survive.
What I've seen is this: Those who have access to tourists or to the government are rich. Corruption is rampant as I've seen people bribing police right at the airport to have their things sorted out.
The mainstream corruption in society revolves around casa particulars and taxis. Essentially, you have right to rent a room and you have right to ride a taxi but there are strict limits on how much you can do it. So what more entrepreneurial people do? Simply distribute the business ownership to their friends and relatives on paper and keep growing and running their enterprises.
Also, there are two different types of shops and businesses: Locals only shops, locals only restaurants, locals only buses that are at very poor quality and I believe they are free or heavily subsidised and there are better quality versions that have prices similar to the European countries(prices way beyond a person with a salary can afford). So who do you think eats at these expensive restaurants? Yes, tourists - but also people who have access to tourists and people who work for the government.
One day a wandered around my casa particular in Havana and ended up in a place with very nice houses quite close to governmental buildings. I took some photos, enjoyed the place and ate at a restaurant. Then I noticed that the restaurant got very busy with military personel and well dressed people. Those were definitely not tourists, those were people from the nearby governmental buildings having a dinner after work.
Very interesting experience overall. Almost completely positive, full of life lessons about so many things including classes in the society where they are not supposed to exists. I'm also convinced that consumerism is not the only way to a happy life and abundance and excess are not necessarily the answer. The first week was hard, the second week I was completely happy to have only 2 options for beer and 1 option for chocolate.
Inside we got the lobsters as promised, maybe the only good food we had apart from the resorts. It came with some extremely stringy mangoes that I don't want to try again.
They also had friends come over to offer cigars and those peculiar Cuban shirts, I think taken from a factory. At least that was their story.
On the other side, they seemed to have a desire to buy clothes, in particular sports clothes like basketball tops. We didn't have that with us but we were told they'd swap the cigars for a top easily. Even just a shirt like you might wear for working in the City would fetch a lot of cigars, apparently.
You want to do something by yourself? Brive me, because it is illegal or you will have trouble. And anyway, if I want, you can have trouble any day, because you did something illegal. Also, the brived people are also in trouble, because receiving a brive is illegal also. Now you have a system where anyone, at any time can be arbitrarily accused of criminal actions. Criminal actions that the government allows to happen depending on their interests.
They do not allow the right to have dignity for the people there. It is really sad. The only truth is that the system imposed there works because of corruption, literally. It is the way it works: I do not let you eat bread, but you need bread. So I give you whatever I want, if there is scarcity you can do nothing, except illegal things to survive, such as trading.