Hello. You can install a special metal drain strainer in your bathroom. It has small holes through which hair and other debris will not seep into the sewer. Although, no matter how I tried to carefully use the sink in the bathroom and in the kitchen, I still had to contact POM Group Plumbing several times already https://pomplumbing.ca/snaking-and-power-wash-of-kitchen-stacks -and-clogged-drains/. Any sewer can become clogged, and not only from hair. So you should not worry too much, but you should not forget about precautions either.