I have always had some kind of exercise in my life, but I think that in the last 5-6 years I had been doing a lot of walking-kinds of activities, and maybe only the past 9 months, I started lifting weights and stretching more, instead of walking so much.. so when the pushup challenge came, I had not been doing pushups or any other kind of body resistant exercise, but I thought that it was a good idea to try it out.. even though I was really not that excited about pushups until I started to really think about it more seriously.. then I began to warm up to the idea... so yeah I was not able to do 100 push ups in my first several days, and I had not been doing pushups for many years.. maybe close to 20 years. I cannot even remember the last time I was really doing body weight type exercises. even though I have had some other kinds of exercises that were more cardio in nature, even though I did have periods of time around 2017, 2018, 2019 of going to the gym to lift weights and swimming too.
I guess this was why it was easy for you to get started at once. Before now I have been struggling to make time for exercise due to busy schedules. But because of this challenge, I do exercise first thing in the morning before I take my shower and prepare for work and in the evening before I take my shower and go to bet, and somedays I do in the day time when the chance permits me. I was not this committed to exercise before, the reason I appreciate the idea of this challenge so much.
One good thing about pushups is that you can do them anywhere.. but yeah, sometimes you might feel that you are not in the right kinds of clothes or that you have to find some private space since it does not seem as usual to see people doing them in the metro system while waiting for a train (or at the bus stop), or in the office (maybe there is a spare conference room that is not being used?), or a parking lot or even in a public bathroom or in the hallway of an airport, but still there could be opportunities in some of these kinds of public places or maybe less public areas to do a quick set of pushups.