Suggestion regarding multiple accounts

I'm making a suggestion regarding multiple accounts because there is a feature to switch accounts on the desktop and web apps, but it seems useless for those who intend to have two accounts for personal/business to keep them separate since you are required to have a valid phone number for each account. How about allowing a maximum of two accounts per phone number for this purpose? I understand this is for security purposes and verification from what I was told but why make having multiple accounts such a hassle for people who intend to use them for business/personal/professional/creative purposes?