Should I stop buying gifts if my nieces and nephews are now teenagers who find me boring?

As young kids I was their favourite aunt but now they are teenagers and don’t view me in a friendly way anymore. They treat me like an annoying school teacher and not like a mentor or friend. I’m not offended cause I believe this is part of growing up but I don’t think I should buy them gifts for Christmas anymore.

Should I stop buying gifts if my nieces and nephews are now teenagers who find me boring?
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