My parents seem not supportive of me giving bm to lo. Does any of you having the same issue as me? How do I encourage them or tell them so as to change their mindset.

My parents weren't supportive either. If your parents are in their 50-60s, they were born in a generation where mass media told them that formula is best - better than breast milk and fresh milk! As a result, most of them fed their children formula until they're even 8-9 years old - and that sometimes get passed down too. I'd say that it wouldn't be easy, but you just have to positively educate them about feeding breastmilk. If they're helping to look after your child, teach them the right methods on how to prepare and deal with breast milk too! My parents looked after my son when I was in school, and I found out that they went to buy formula (even though I had chilled breast milk in the fridge) - ended up wasting my breast milk because they said "it was too troublesome to prepare". I stood my ground and hid the formula away when I went to school, they bought another one and I threw them both away. It took a while, but I convinced them it was better in about 3 months or so!