If it is only as a hobby, it is no problem to start learning dance at the age of 25.
But it is unrealistic to take a professional route.
2. Dance major generally starts from primary school. Most professional dancers begin to learn from the age of 4-5, and the learning time is about 10 years. Both rigidity and softness need to be practiced from an early age. When you grow up, stretching after the bones are developed can't achieve professional results.
3. If you just like something, you can only stick to it. Of course, it's too late. Dance some simple dances while practicing basic skills.