Questions to ask:
Is this interest something that helps fill time during the day? Is there enough other things to fill in that time if it was taken away or didn’t exist?
What other activities does the individual have the same skill level at? Is there balance in how their time gets used? If so, they why is this considered to be a high intensity interest rather than just an activity that is loved? Why the assigning of the language labels that indicate it’s not a good thing?
When did this interest start? Does it interfere with other things? Is there a health reason that the individual wants to keep doing it to this level of intensity? Why?