You can get the virus from anywhere. Only a fool would say he got it from seeing an escort. If you touch your eyes mouth etc after touching a contaminated surface you can get it that way as an example. Natural selection will run its course eventually.
I agree with your thinking, to better explain perhaps what you're saying is - the virus has a known 7-14 day incubation period. While the likelyhood of catching a virus is the highest percentage from someone you have been intimate with (i.e. a SP) it is not conclusive as many will imply or flat out suggest.
A difficult to argue comparable would be if you saw an escort in the last 14 days but also have a roommate/live together family member and you both test positive. Did the roommate/family member give it to you, sharing a home? Did you catch it somewhere, perhaps the SP and give it to your roommate/family member? We can all quickly jump to the 'likely scenario', myself included - I write this post to simply identify there is no conclusive proof of who/where you caught this virus from unless you are extremely self quarantined other than a select encounter with someone else, SP or otherwise.
Food for thought.
There is already apps for use in regards to contact tracing. It’s really not that hard to narrow it down on who the actual spreader of the virus is once the app is used.Agreed.
Too many variables to know for sure where you catch it if you do.
There is also a Canadian company Toronto based that is being used for tracing by hospitals, it’s one of the leaders in the industry it’s called bluedot.