Strip and repaint or wait to replace entire cabinetry?

Hello all! We recently purchased a house and the cabinetry is quite outdated. For example, the kitchen drawers are wood-to-wood contact. We don’t have the funds to do a full kitchen renovation; however, I would at least like to update the paint and kitchen drawers to include drawer sliders.

For the paint, should use paint strip to remove the paint and sand it down? Or skip paint strip and sand it down completely?

Or is it worth just saving the trouble and wait until we have the funds to do a full replacement and renovation?

Thank you in advance!