I live in Spain and this is false. There is Uber/Uber Eats/something similar in all cities and big towns, airbnb everywhere, chat support, all businesses have either a website or social media presence, you can book a table using whatsapp or social media such as Instagram, etc. Spain is nothing like you imagine it.
Because the government wants to give itself the responsibility of raising the children and controlling society at large. Fining the parents would be like saying that parents are in charge of their children and that goes against the interests of the government.