Because simply from your above description, you can't see the specific situation of the two units you are applying for. If they are all large formal institutions, each position has its own development prospects. It is impossible to be a teaching assistant in an international school or a kindergarten teacher in an early education center for life.
To put it simply, I think teaching assistants in international schools will be better. First, they will urge you to improve your foreign language. Second, if you are an ambitious person, cooperation with foreign teachers will enhance your curiosity, gradually clarify your development direction, and then supplement relevant knowledge and gradually enrich yourself. Maybe we can get more extensive development.
I hope it helps you.
Supplement:
In fact, I feel that your choice is still very wide. You are qualified for both positions, but it mainly depends on your own plans for the future.
You have been learning piano for almost 24 years, so you must be at least 26 years old. At this age, you should make a clear plan for your future first.
1. If you are willing to start a business, I think you can start a piano class and teach your children to learn piano. The income should be considerable and apply what you have learned. At the same time, your foreign language is not bad, and you can also take care of foreign children. Of course, adults can also teach ~
I don't want to start a business. I hope there will be higher development in the future. You can go to an international school, but I don't think being a teaching assistant is a good choice. After all, this is just an assistant's identity. Unless there is a professional counterpart, it is difficult to become a formal teaching teacher. So if you want to go to an international school, you can take some management courses and gradually move towards teaching management, and the future will be broader.
3. I always think that the preschool teacher in the early education center is not a good choice. Of course, if you are an ordinary girl who likes a quiet life, it should be good for you. However, if you want to have room for improvement in the future, at the peak, you will be the head of the preschool education center at most, unless you change jobs to other larger preschool education institutions.
In your present situation, you should have a good music foundation. Of course, I don't know what level you are now after studying piano for 24 years. If you think your music and English skills are still good, I still advise you not to lose them. Combine music with English and start your own business. The first few years may be difficult, but it will be much easier when you get on the right track.
Personal opinion, for reference only.