The abuse and slaughter of animals is a primary reason for any to be vegan. But there are the environments being ruined with animal agriculture, so there is environmental reason to take being vegan seriously. Likewise with all the more resources being used for animal agriculture, and all the water, and all the land, for it, and there is the contribution to emissions associated with climate change with the warming of this planet. Having just all whole food from plants is also very healthy for us. Being vegan is done for the animals but all these things as more reason make a strong argument for it. And I found it is not hard at all.
For me it’s because of the workers.
Hurting non-human animals, ultimately, hurts the human workers and human communities that have to do it. Numerous psychological studies have found that slaughterhouse work is enormously damaging to the human mind, and statistically slaughterhouses are found to increase violent crime and suicide and addiction and spousal abuse. To my shame, personal experience affirms that killing animals is harmful to psychological health.
Once I made that connection between the suffering of human and non-human animals I knew I couldn’t participate in the consumption of animal products.