My understanding is that entanglement has nothing to do with the particles and everything to do with what is known about the particles in advance by dint of the experimental setup.
For example, that two electrons are created in a closed system with a net spin of zero, so as long as you do not allow their waveforms to collapse (EG, so long as the system remains closed) then no matter where they go they must maintain that net spin of zero when perceived in relation to one another.
But if this is the case then the "entanglement" precedes the creation of the particles: it is nothing more than an accounting that they are required to obey in concert by the symmetries of physics.
For example, that two electrons are created in a closed system with a net spin of zero, so as long as you do not allow their waveforms to collapse (EG, so long as the system remains closed) then no matter where they go they must maintain that net spin of zero when perceived in relation to one another.
But if this is the case then the "entanglement" precedes the creation of the particles: it is nothing more than an accounting that they are required to obey in concert by the symmetries of physics.