Can I choose Not to file a dependent even though they are eligible?

Hello.  My 20 year old daughter qualifies as my dependent for the year 2020 but, I am debating whether I should add her as a dependent on my 2021 taxes or not.  Typically I would claim her however, I want her to be able to do her own taxes this year (she received a 1099-NEC) to say she is not claimed as a dependent.  I just do not know if this is a good choice or if it even matters.  When I played around with the tax tool, I took her name off my return, I did not see a change in my return amount.