The claim that only 25% of visitors are on a laptop or desktop, would not be accurate for many shopping sites. I'm not sure why you're generalizing about websit

The claim that only 25% of visitors are on a laptop or desktop, would not be accurate for many shopping sites. I'm not sure why you're generalizing about website traffic. Laptops are not unpopular devices. People use them at work, at home, to shop, browse, everything. People love their laptops. At work, people love dual monitors etc. That won't change because humans need sufficient screen real estate to get stuff done and display documents etc. As I said before, quality of users is also important. You should analyze your traffic to see bounce rate and spending for mobile phone vs everything else. You seem to think that a mobile layout will be "compromised" if the design starts with the full website layout. This is old thinking. If the brief says "we want a strong website on all devices" then your designer and devs will make sure the site is great on all layouts. Otherwise they're not doing their job. There's no universal law that says unless you design for mobile first, it will suffer. Your idea is left over from years ago when mobile phone usage was low, and mobile browsers were poor. Remember when there was a delay between pressing a button and the action, because iOS was "waiting" to see if was a double-tap or not. The compromise was built-in. Add to that the crippled cache and memory abilities of phones, and the preference of mobile manufacturers to push people to native app stores, nobody should be surprised that mobile browsing was/is compromised by its very nature.