\>10 that’s just a kid   
\>15 giga-youngshit  
16-18 youngshit  
19-24 midshit  
25-29 lateshit  
30-40 oldshit  
40+ ancientshit  
60+ boomershit

Passing after transitioning from 18+ = luckshit  
Being intersex makes you a luckshit also 

Reasons-

younger than 15 you have not started or barely started puberty and are completely save-able as long as puberty didn’t murder you. Stuff like hips bones haven’t fused, growth hasn’t peaked, and voice hasn’t fully dropped, haven’t started sexual changes if you’re lucky. For trans men still might need top surgery. Needs accepting parents and money

16-18 you have experience a decent amount of the wrong puberty but many people can still pass if they get hormones and good genetics. The later stages of masculinization/feminization haven’t completely and cooked you yet, sometimes hip bones and growth hasn’t completely yet so you might get lucky. need good parents or need a strong will and diy. I think its important to include 18 year olds as the cutoff point because of trans people that were denied hrt before 18 but were able to do their best to not masculinize/feminize before hrt and then got hormones asap when they turned 18.

19-24 these are the last main stage of masculinization/feminization cutting off before 25 as thats when people generally say your “done” both in body and brain development as well as all bones fusing fully. You could pass if ur lucky on hrt and effort max. Will decent chances will need surgery.

25-29 last of the 20s before you start to properly “age” as the wrong gender. Can be saved but passing likelihood graph tanks here without surgery and lot of effort. Please don’t repress

30-40 you’ve started aging as the wrong sex and it will destroy your transition outcome, ur body isn’t designed for more development it thinks you are just trying for survive now has a fully developed male/female. Ur nuroplasticity also tanks so ur mind won’t be able to change the same ways as a younger trans person’s can in the physical gendered structure of the brain after hrt to the correct sex. This also applies to your worsen ability to change your behavior, emotional response, and learning new skills. You will look and feel less “natural” than younger trans and cis people on the outside and inside without major effort, hrt hyper luck, and surgery.

40+ same as 30-40 just more aging issues and less likely to pass

60+ im so sorry. If ur a trans woman this age PLEASE don’t fall into crossdressing sissy porn. Trans men at this age lowkey still might have a chance if they are lucky

My opinion on what ages is “youngshit,midshit,oldshit”