Since the Raaman Seethai age our culture for women is to wear Saree and for men westhi.
Do you think it should be followed by today's generation as well?
Does it have an impact on our personality?
Practically speaking yes, it will impact your personality and the opinion as well! "How you are reflecting yourself" is important than "how you are reflecting to others".

When we go for a wedding we can wear saree and in parties we wear modern one.
But, now ladies wear jeans and leggings to the Hindu temple festivals as well as funeral too