Do u give a set of keys to your in laws and your parents?

Depends. I gave to both my parents and in law as I know them well. But they very "auto", they did not once come to our house on their own with the key. It's good for them to have it for emergency case. Once, me and my husband left for airport and realised we forgot to bring out our portable charger that was still charging at home. I asked my dad to help me switch off the charging. Otherwise, I would have to rush back to switch it off and might miss my flight.