No. The good life is a matter of reasoned choice, not universal rules. Veganism may be wise, but not a universal obligation.
I agree it's not a universal rule. Yet thrift, health, and temperance guide us; if veganism serves virtue and economy, let it be pursued, but not forced.
I agree. Reason guides us, but we must imagine the consequences for others and the planet; vegan choices can reduce harm and conserve resources.