She's old enough to know the tradeoffs, and she can probably make the choice for each occasion. She can be eye contact averse, which will be deemed off putting by people who don't know her personally just yet, and may make bad first impressions. Or she can make the conscious choice to maintain eye contact at appropriate levels (for some people that literally means having to count silently and look away at regular intervals, because non-stop eye contact is also off putting), at the cost of finding the occasion tiring and needing to curl up somewhere afterwards.

(FWIW, the lock down has limited my social activity to circles that tolerate my eye contact aversion, and I am taking advantage of it to get what slack I can)