Philosophy: If you love the bird...let it go. If it returns...hey, what do ya know

If it does not return...it was never meant to be

You all know the gist
Do you adhere and practice this? Which type/s would most and least likely adhere and practice this?
i adhere to this philosophy to the degree of using it as a crutch
Hrm not sure about the types which would work best for, since I've only recently started checking into the types and such and it takes aloooooot of research to get each one down.
For now, I will state some things that bothers me with it.
Many birds are non migratory, or don't have any real way to find a way back. In some cases, this can mean that letting one loose just means it's confused, in extreeme cases, a bird in captivity released to the wild is little more than a death sentance. Reintroduction of captivated species is very difficult to do as they often lack many of the critical skills required for survival, and even their basic survival instinct to avoid humans may not work. As such, releasing the bird in the first place can be little more than an act of cruelty, or at the very least, misinformation.
On an emotional scale, in terms of directly involving humans, to which this refers to, "letting one go" can be directly viewed as abandonment... occasionally yeu are presented with a challange, sometimes the person really wants to be left alone, and sometimes they're just testing to see if yeu're willing to follow them into the depths of hell. "Letting them go" can be exactly the wrong answer. I know I'm personally guilty of employing this strategy at time due to various personal insecurities, and it often means that even though I'm pushing someone away, the intent is moreso to see if they really care enough to cling on anyway, or whether they'll just give up at the first moment's notice, which only justifies my own poor view of myself.
As such, the entire phrase is completely inaccurate and should really not be used due to a variety of reasons. It's not accurate, figuratively NOR literally, and can often lead to complications which're undesired.
Seriously, consider a more blunt context... let's say yeu've got a boyfriend who drives yeu out into the middle of nowheres or a city or something, lets yeu get out of the car, then just drives off, and waits to see if yeu come home or not. Whot implications are we looking at if yeu actually DO go home? That could be a very strong indication that it's alright to begin an abusive relationship. Not returning would be a sensible thing to do as well.
Just telling someone yeu care about that yeu don't care if they see other people can also be misinterpreted in a great many ways... from assumming that yeu already ARE seeing others, which would be assumably the only reason to state so, in which case yeu just falsely incriminated yeurself, to thema ctually taking the advice, which can either end up with them finding someone who actually cares enough to hold onto them, them getting badly hurt, emotionally or otherwise, or they may just come back disease ridden.
There's far too many horrible risks for virtually no possible gain, as the one 'released' is unlikely to think too highly of it, regardless of their interpretation. It'll be either seen as neglect, not caring, abandonment, to many other wide ranges of negative implications.
As such, letting the one yeu care go, can often be one of the worst things yeu could do. It has very little chance of positive benefits, and a great risk of many negative connotations.