Lifestyle
Does everyone have a lifestyle or is it possible to not have a lifestyle?
I think your 'lifestyle' is more a case of things that you have as set routines, things that you are quite rigid about, and don't chop and change week in week out.
For instance it might be some peoples lifestyle to socially drink every night...it might not be healthy or suit everyone, but that's how some choose to live, and each person chooses their own sets of living standards that they choose to abide or live by.
Anyone can and does have a lifestyle it's just that one person's lifestyle may not be favorable for another person or even be considered a lifestyle worth having.