Simplify and modernize by removing exclusive use for a home office deduction

Yet more from the testimony I submitted for the written record of a Senate Finance Committee and Small Business and Entrepreneurship Committee roundtable held June 7, 2023 (see my posts of 7/9/23 and 7/2/23 and 6/25/23). Another way to simplify tax rules for small businesses (such as ones operating out of the owner's home) and modernize tax rules is to remove the exclusive use requirement for the home office deduction.

Modern life makes it unlikely that anyone uses a home office only for business activities. Most people, for example, have a smartphone in their hands and might get a personal call or text message or use a weather app while in their home office.

An alternative would be to allow a home office deduction only if the space is used over 50% for business and to reduce the deduction based on the percentage of personal use of the space, such as based on time. Offering a standard home office deduction, such as allowed by Rev. Proc. 2013-13, would be helpful, with the amount adjusted annually for inflation (and no exclusive use requirement, but adjusting the standard deduction for the percent of personal versus business use of the space based on an average week of use). 

What do you think?