Kyla, a lot of people pollinate their citrus because they think it's fun. It's not necessary, though.
Bees do like citrus trees, but citrus groves (especially Meyers lemons) don't need to intentionally bring in honey bees like apple tree groves, because it's not necessary.
You get dozens and dozens (hundreds, even?) of flowers on a small lemon tree, but you'll probably get 4-5 lemons tops until it's more mature.
