I think a lot can be said for learning to sew. When starting out my answer would have been a little different but as time went by and my comfort level improved I realized it had offered me a lot of benefits.
So should you learn to sew?
This is the answer that I gave to a friend who asked me for advice because she wants to create and make her own clothes and, why not, make it her profession.
Well, that is outside of my expertise.
If you want to learn how to create professional level clothing you probably want to take at least a few courses at you community college.
Otherwise if you are content to take some sewing tips from somebody that is still learning I will go through a couple of aspects I feel the most comfortable about, out of all the sewing I have been able to follow none of them have allowed me to learn how to create my own patterns.
If you want to learn to make your own patterns you need to study drawing and understand how a two-dimensional surface wraps around a three-dimensional form. Sewing itself does not teach you to be free, to create as you see fit, and that's normal.
The production of ready-to-wear clothing is a different skill then the design phase.
Following patterns is just that, following patterns. It is a paint-by-the numbers style of craft.
Another big problem with all the existing seamstress courses I found online is that they are ready-to-wear, one size fits all. As I just said, so not at all suited to "tailor-made". The only bespoke they take into account are waist circumference measurements, chest, hips, etc., but never the asymmetrical appearance that a lambda can have in everyday life. To understand a little better what I'm talking about look at the Video series for beginners on Youtube, specifically those geared toward modifying patterns.
Once you learn more you can decide it you want to take sewing classes (I recommended the community college route which is what my sister did), that can be a very good plan provided: the teacher respects your learning choices (various techniques in particular) and does not impose a defined program, its purpose is to actually make you autonomous and not dependent on her classes (so that in short, she gives you all her keys and tricks, to work like her), she does not restrain you by telling you that it is like that and not otherwise (there are always several ways to achieve the same result. The best way is the one that suits you, no one else), finally that it explains not only how, but especially why you have to do things in such a way rather than another.
With that said finding a teacher like that is not easy, from what I am told here and there. If they don't have these qualities, you're going to waste your time, your money and most importantly, worse than anything, your motivation and your energy. That is why I am leery about signing up for the sewing classes I see advertised around.
The bottom line is that if you want to achieve anything more complicated you are going to have to learn more than one skill set. If you want to achieve complicated and professional results you are going to have to invest a lot of time and energy into perfecting your skill.
Learning to sew will teach you plenty of valuable skills but it will not be an easy.