Keep calm and carry-on!
Life is full of things that, technically speaking, we are able to do, but that reasonable, considerate people refrain from doing—because it negatively impacts the other people around us.
Only assholes recline their seats – When stuck in economy, and craving for a little more space, remember everyone else is stuck in economy too. Treat your fellow man with respect—don’t recline your seat.
Ask yourself, “Who is making more noise, me or the babies on the flight?”