Here's why:
* They are herbivores: Sea hares feed on algae and seaweed, so they don't have any teeth or claws to harm humans.
* They are shy: These creatures are quite timid and prefer to avoid contact with humans.
* Their defense mechanism: While they do produce a purple ink as a defense mechanism, it's not harmful to humans and washes away easily.
However, it's important to remember:
* Avoid touching them: While not harmful, touching them may stress them out and they could release their ink.
* Respect their habitat: Sea hares live in delicate ecosystems, so it's important to avoid disturbing them or their environment.
In conclusion, sea hares are harmless creatures and you can enjoy their presence without any worry.