Having the same name as a famous person seems like a decent marketing benefit. And funnily enough, that’s achievable with some paperwork in many areas of the wo

Having the same name as a famous person seems like a decent marketing benefit. And funnily enough, that’s achievable with some paperwork in many areas of the world! I wonder how/if this interacts with trademark (or other?) law. Can I change my name to Sundar Pichai? If so, then why haven’t a bunch of techbro founders done that already?