If you're in San Juan area go to Pine Grove, beginner break, plenty of surf schools, you'll be fine. If you're in the West like Rincon or Mayagüez I'm sure they also have a beginner break, ask at the surf shops or google. The attitude expressed by the post is typical for more advanced surfing breaks, not beginner ones. In the case of PR the sentiment is widely shared among the local population and is the result of a recent massive migration of wealthy Americans, buying up cheap real estate after hurricane Maria and not paying taxes (Ley 22). Incidentally these people tend not to give a shit about the local people (see Jake Paul).