This may be a silly question (ftm) but are baby carriers designed to fit on everyone? My partner really wants one but he's a big man, not fat but 6'2 broad and muscly.  I know they're adjustable but do they adjust that big or is there a special 'plus size' I'll have to buy. I'm only small so I want one that we can both use! Sorry if this is a ridiculous question lol 😊