Even without taking hormones, it might be the same for partial transmales since I was mistaken for being a middle school student, or teenager, into my 30s.
At 25, I was "arrested" by a truant officer while riding my bicycle past a middle school. I had to argue with him while he mocked my protests and told me to "Get back inside this minute, young lady!"
At the same age I was screamed at and ordered out of a fancy restaurant where I was applying for a job. When I showed the manager my driver's license, he scoffed, and told me it was probably a fake ID and to "get out of here, and don't come back!"
When I had my daughter at age 31 (I was married and also had a 3 year old son), people in my new church told me they had been feeling sorry for me, assuming I was a homeless teenage mother.
When I went into stores to buy things, I was routinely ignored, or insulted by salespersons who thought I was a teenaged shop lifter, and showing them my money made no difference.
The insults and being ignored stopped with my first streak of gray hair in my 40s. I was immensely relieved.