deferential
Respectful and willing to follow someone else’s ideas or wishes.
Deferential means showing respect by yielding to someone else's judgment, wishes, or authority. When you're being deferential, you listen carefully to what someone says and give their opinion serious weight, often because of their experience, position, or expertise.
A student might be deferential to a teacher when asking for help, speaking politely and accepting guidance without arguing. A young chess player learning from a grandmaster would naturally be deferential, recognizing that the grandmaster has years of knowledge to share. Deferential behavior involves a certain humility: you're acknowledging that the other person knows more or deserves respect.
Being deferential doesn't mean you have no opinions of your own or that you're weak. It means you recognize when someone else's experience or authority matters. A scientist might be deferential to data and evidence. A craftsperson's apprentice shows deference to the master's techniques.
However, there's a balance. Someone who is too deferential might never speak up with their own good ideas. The goal is to show appropriate respect while still thinking independently. When you treat your grandparents' advice with a deferential attitude, you're honoring their experience while still learning to make your own choices.