“…In 2019 in Poland alone they amounted to 24.1% of all household types (Eurostat, 2019). This tendency has many social and economic implications because, according to research, people living alone tend to behave differently from those in relationships in terms of consumer behaviors (Dąbrowska, Janoś-Kresło, Lubowiecki-Vikuk, and Słaby, 2018), healthcare expenditure (Tur-Sinai, Magnezi, and Grinvald-Fogel, 2018), food-related lifestyles (Kim, Lee, and Lee, 2018), transportation behaviors (Young and Lachapelle, 2017), physical activity (Bassett, Wyatt, Thompson, Peters, and Hill, 2010;Del Duca, Nahas, Garcia, Mota, Hallal, and Peres, 2013;Garcez, Canuto, Paniz, Olinto, Macagnan, Henn, Pattussi, and Olinto, 2015;Park, Castaneda-Gameros, Park, and Oh, 2019), and quality of life (Brown, Carroll, Workman, Carlson, and Brown, 2014;Kim and Kim, 2020;Perales, Pozo-Cruz and Pozo-Cruz, 2014).…”