Capricorn here and to be honest, a lot of the attributes are pretty spot on.
Can't say that I believe the stars and all control us but I do think there might be some traits that are picked up based on the time of year we are born and the way the world unfolds during development. When I think on it based on facts like winter babies are more likely cold more often, don't get outside as much, probably get less skin on skin hugs, maybe get less fresh produce and less vitamin D and have much longer nights so maybe the world seems scarier and less accommodating when we are most helpless not walking yet. Meanwhile summer babies probably get a much smoother start to things. Also the nutrients, foods, germs and all mothers have access to or experience as the baby grows likely have an effect. As a result, the truth of winter v summer is a thing I can hang my hat on, it doesn't bother me that it is called astrology or anything, to me that goes in the same folksy tradition bucket as a Christmas Tree. Astrology is just humans noticing patterns and trying to make sense of the world, like we always do.