I dont know how prevalent this is, but this is something I personally would never do and neither would I ask someone to do it.
It is very common, infact people accept money from a complete stranger in front of ATM because someone approach us and ask us to give the money that we are going to deposit there and they will send it to our bank account and the most common reason from them is they forgot to ATM card or it's not working in the particular machine so please help, and people over 40s will not see as a threat in anyway and accept it but it has serious consequences if the person has wrong intentions.
Even if we are getting it for ourself, I would suggest maintaining a separate bank account for trading purpose. This will eliminate first level bank account freeze.
This is just a minimum security but can be helpful on various situations especially for someone who deal with small amounts so their chances of freeze all their bank account is minimal.