This action is not a huge difference to my usual behavior, as I grew up the way that we should not leave our trash behind. As a family we spent nearly every weekend enjoying nature with hiking, swimming in the lake, playing in the forest... and it was clear for each of us that we do not want to play in the trash. You learn to respect nature as the source of live and we are only small bugs in it ;)
Nowadays, we try to avoid unnecessary packaging when we go shopping, e.g. by bringing our own bags and purposely decide not to buy items that are wrapped when there is a "open" option. Some shops even accept if you bring your own Tupperware to carry e.g. fresh meat in it or bags for the vegetables or cereals. It means a bit of informing yourself upfront and planning ahead but it is very doable.