Are my gums receding? (Photos)

I'm wondering if my gum receding is worth getting braces for? Went to a dentist and They told me one tooth's gum is receding and it's at 5mm when it should be 3 mm. They said it's going to spread. They told me They want me to get braces to realign the teeth instead putting in a graft. They also want to charge me around 6 k with insurance...what do you think? Going to get a 2nd opinion but till then I am just curious what you think.

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