Is going “international” from North America a no brainer?

I sell on shopify, to 100% organic traffic coming from my online tutorials.

45% of my social media traffic comes from Canada & USA. I live in Canada and sell via shopify to those 2 nations. I get 1-2 requests weekly for international shipping options. I have my HS-Code for each product I sell.

What are the main reasons not to go international, or is it a no brainer? I understand NA shipments will be the most "stress free" but how would you weight the risk/reward of longer term shipments and whatnot?