@Shandy *******
Yes, people are allowed to apply for a visa with purpose of their choice.
IT does NOT allow them to do activities who are NOT allowed under their visa of their choice.
Remote workers can come on holiday to Thailand using tourist visa, or being dependent, it does not allow them to work.
People can come to Thailand using a Non Immigrant O visa based on retirement, it does not make them married to a Thai Citiizen or allows them to do volunteer work or even worse, make them a child under 20 years of age.
a Person choose a visa with purpose and follows the rules of the visa.