"Dating" means different things to different people. Some people A) are really looking for potential life/long-term partners and want to take it really slow, others B) are really looking for sex partners with varying degrees of commitment. The general standards and expectations for A and B vary widely amongst individuals, so widely that really IMHO any dating app can't effectively promise anything other than "we'll introduce you to people" unless it explicitly limits its target group to A or B. Even then, people will lie to try get what they want, especially in cultures where honesty about sexual needs and goals is not valued or is only valued if part of a greater economic/societal goal which often has a perceived or actual high bar of entry.

Regarding ecomonics: IMHO there is a general social breakdown related to the general economic breakdown for the non-rich in the U.S.

It's easy to have fun with social and sexual life when it's easy to take care of your basic needs like food, medical care, housing, etc. The 1970's was a lot of fun I guess at least in certain places of the country. Having fun in general has gotten much more difficult for non-rich people over the past 30 years, and it makes intimate/fun social relations also much more difficult. Example: Being a single person living with one's parents because they cannot afford a house or apartment places one at a significant disadvantage, more so if male than female, but females living with their parents and trying to have a dating life may have a hard time.