Don't live to other people's expectation. Live to your own. Take the pancake as an example, there is no need to sound apologetic for using eggs. If you have always been consuming eggs, and if you have never given veganism a serious thought, why make a half-hearted and insincere apology if you don't even believe in it?

As a vegan myself, I disagree with your food choice, but I will still respect you if you stand by what you believe. If you want to please everyone, you will lose your spine.