Here is some food for thought: If students have Second Step at the Tier 1 level, providing extra Tier 2 pull - out support for students is helpful. (cfchildren.org)
If you book via the BA partner airlines, you can also earn extra tier bonuses offered through their loyalty programs. (headedabroad.com)
There is even an option to purchase extra tiers on the Battle Pass if you're really eager for a specific skin / emote etc.. (gamingintel.com)