Many traditional cuisines include meat as an integral element. Historically, meat has been an integral part of feasting in many cultures. Going vegan would remove mean from these cultural traditions, changing them forever. You can limit meat consumption but still keep a cultural and traditional space for it.
According to many belief systems, humans are the only animals which have souls. Some believe that animals were put on earth by a creator to serve human beings, and therefore eating animal products is ethical.
Animals should not be murdered just for human nourishment.
Eating meat causes animal cruelty
Farmed animals have been proven to have feelings, thoughts, and personalities. On today’s factory farms, they’re crammed by the thousands into filthy sheds and wire cages. Some never see the light of day.
There is enough food to feed the world population. World hunger is still a huge issue because rich countries demand meat, and therefore it is more lucrative to sell this luxury to them. If less people ate meat, more efficient crops would take their place and be able to feed the entire world.