In short... no.
Many Support Workers do have qualifications, but it's not mandatory.
When Kynd began... we asked this exact same question. Our guiding vision and philosophy for Kynd is 100% community empowerment. People have the choice.
Some Members might seek Support Workers with qualifications or certifications (or related experience). They can ask about this within Job Posts and Meet & Greets.
On your Profile in Kynd, you're also able to tick what experiences you have and what services you'll offer. You're responsible for ensuring your profile is honest and correct.
Naturally, never do anything that you're not legally qualified to deliver.