Explaining yourself is definitely something you SHOULD be doing. Especially when there's people around you willing to learn.

People understanding you doesn't mean they will have the same exact perspective on absolutely everything you ever do throughout your entire life.

Discussion is healthy. You're not the ultimate beacon of truth, just like everyone else we got everything to learn and we know nothing.

The best way to learn is by teaching.

Of course, I'm not saying you should be okay with someone questioning your every move - But someone challenging a difficult decision, proposing a different perspective every now and then will only help you grow - As long as YOU are willing to grow.