I guess that depends on what you consider catching to mean. If you have such a low amount that you experience no symptoms and not enough to spread, is it caught, or have you staved off the illness?

agree that it is just in degrees - from the asymptomatic person to the vaccinated or even the person previously infected.

In this way, it should just be considered a terrible version of the common cold, and each person should take appropriate steps to protect themselves ( either before the event such as boosting immunity, reducing comorbidities, just not going to high risk areas or at the event - social distancing, masking, etc )