Security idea: let users set daily spending limit, then require 2FA for any transaction after the limit is hit

I think this would help against session hijacks and other exploits without "being uphill battle" as users could set their own limits.

Example: I set a 1000 USD daily limit. I can make 6 trades worth 100 USD each, and buy some random nft for 400 USD. Any transaction after that requires 2FA, but I'm not bothered because I set the limit according to my habits. If I want to make a lot of additional purchases, I can adjust the limit to 2k or whatever, and then back to 1k when I'm done.

If my session is hijacked somehow, the worst of they can do is to drain 1k/day, but no 100k nft or whatever. Users who want maximum security can set the limit to 0 USD to require 2FA for all transactions, or they can raise the limit to whatever is required for the day, then set it back to 0 when they are done, for a total of two 2FA confirmations (+one for login).