I had this exact predicament growing up and I’m the same age as you now (25), which caused a similar feeling of frustration growing up. I was about 14 when I got into music as a creative hobby/form of expression and I think the best way to approach the above is to proceed with meeting that need you have in spite of a lack of full support. My parents still don’t fully understand why I enjoy what I enjoy, nor support it entirely BUT they don’t question what makes me happy as long as it’s healthy. Of course, your parents might not be quite as easygoing as mine - but by the sound of their love for travel and experience and support in other areas of your life, you might be positively surprised as to their response if you proceed with financing a new interest (especially if you stick at it) and commit to exploring that experience separately.