f. Walker and stroller bike

Ay, I think you're asking about walker bikes or those hybrid stroller-bike things, di ba? Hindi ko pa personally natry yan, but a few of my mum friends have mentioned they're looking into them too kasi space-saving and practical for active families, kung may specific model or concern you have in mind, ask away at I'll try to help based on what we've experienced with regular strollers and bikes!