Thank you! As a super fair-skinned white girl who was ridiculed for it (sometimes still am) as a kid, I sometimes did spray tans in my early 20s (I only burn then freckle in the sun, so fake tanner was the only option). It did make me look thinner and made my teeth appear so much whiter (because of the contrast), but it also was expensive, time consuming, messy, a pain to upkeep, and in retrospect, really ridiculous. Many of my friends who could tan (or tan then burn) or who could/would tan in the tanning bed now have premature aging/skin damage in their 30s that has really taken a toll on their looks (not to mention that they've put themselves more at risk for skin cancer by tanning in tanning beds/in the sun). Criticizing fair skinned people's skin tone can lead them to do things that will hurt their skin & their health in pursuit of not being "so pale" or "so white" (especially teens & young adults whose long-term decision making brain part isn't completely formed yet). It's a dangerous criticism (not to mention hurtful).
We don't all have the same skin tones/colors and every skin tone, from fairest fair to darkest dark, is beautiful and should be celebrated. Your skin is your largest organ. It's not like adding mascara to light eyelashes or curling straight hair since it's such a big part of your body. Love and embrace the way God/the Flying Spaghetti Monster/Genetic Variation in Your Ancestry/Etc has made your skin - dark, tan, able to tan, fair, etc. Fair skinned white people l shouldn't need to bronze or orange themselves any more than a dark skinned person should feel they need to bleach their skin to lighten it. No one would dare publicly suggest a dark skinned black woman should bleach their skin lighter. No one should suggest fair skinned people should attempt to make themselves bronzer/tanner/darker/etc. Skin tone variation is a thing and should be celebrated and accepted as beautiful no matter where on the varied spectrum of skin color ones falls. No matter what your skin tone is, you are beautiful.
[And wearing fake tanner with a white/light colored wedding dress when you might sweat from nerves/camera lighting/etc is a recipe for disaster- like streaking bronzer from sweating and orange/bronze stains on the edges of the white dress. Not to mention that fake tanner/bronzer is notorious for leaving streaky, weird looking hands (especially since it isn't added to one's palms) and lots of people will be looking at the bride's hand at her reception because of the ring.] /rant over